Littlefuse MP8000 Istruzioni operative

MP8000 Programming Guide

MODBUS TCP and Ethernet/IP Software Development Guide

Patent Pending

MP8000

MP8000 Programming Guide

TABLE OF CONTENTS

INTRODUCTION .............................................................................................................................................................. 1

CONNECTING TO THE MP8000..................................................................................................................................... 1

MODBUS TCP CONFIGURATION .................................................................................................................................. 2

MODBUS Memory and Data Location Terminology / Register vs. Address ................................................................. 2

Supported MODBUS Message Function Codes ........................................................................................................... 2

Read Command Example .............................................................................................................................................. 3

Special Notes When Using the 4X Addresses .............................................................................................................. 3

MP8000 MODBUS MEMORY MAP................................................................................................................................ 3

CONFIGURATION SETTINGS ........................................................................................................................................ 4

Command Register ........................................................................................................................................................ 6

Real Time Status............................................................................................................................................................ 7

Fault Record Retrieval.................................................................................................................................................... 8

MP8000 ETHERNET/IP INTERFACE............................................................................................................................. 10

MP8000 Network Settings.......................................................................................................................................... 10

RSLOGIX5000 Setup................................................................................................................................................... 10

LED Indication.............................................................................................................................................................. 10

ETHERNET/IP OBJECTS ............................................................................................................................................... 10

Identify Object ............................................................................................................................................................. 10

Identity Object Class Services......................................................................................................................................11

Identity Object Instance Services.................................................................................................................................11

Assembly Object ..........................................................................................................................................................11

Input Assembly.............................................................................................................................................................11

Output Assembly..........................................................................................................................................................11

SPECIFICATIONS........................................................................................................................................................... 14

MP8000 Programming Guide

INTRODUCTION

This guide is addressed to systems integrators who will be developing software for a master device to

communicate with the Model MP8000 product. The software developer is expected to have reasonable working

knowledge (example: understanding what uint16_t Base 10.xx means) for writing programs. This document also

describes the EtherNet/IP features supported by the MP8000. The MP8000 supports Explicit I/O messaging as

deﬁned by the ODVA EtherNet/IP Speciﬁcation.

NOTE: Littelfuse has developed a PC based program called MP8000 Software. It is available for free and should

work for most applications.

The master device would typically be a Programmable Logic Controller (PLC) or a Personal Computer (PC) that will

communicate with one or more slave devices. A PLC normally would have the command protocols built into it, so

the programmer would not have to develop them. If programming a Personal Computer, these would have to be

developed or ﬁnd a library online that supports MODBUS TCP or Ethernet/IP.

If programming a PC, it may be worth noting that it is the responsibility of the master controller to initiate

communication. In other words, the master controller must be programmed to periodically poll the slave

devices and initiate a request for data or to issue a command to the Model MP8000 to stop or reset the Model

MP8000’s control relay. When the Model MP8000 responds with the requested data or conﬁrmation of the stop

command, it is the responsibility of the master controller to determine if the information arrived correctly with

no communication errors. If there are communication errors or if there is a time-out waiting for a response, it is

the responsibility of the master controller to reissue the command to the slave device. If the response arrives

correctly, the master controller is then required to further process the data to put it in a form suitable for viewing

by an operator.

Connecting to the MP8000

The RJ45 jack on the side of the MP8000 is the interface for MODBUS TCP and Ethernet/IP. The user can access

the MP8000 via a network or via a direct connection. Accessing the MP8000 via a network can be done by simply

connecting a standard Ethernet cable between the network (switch/router) and the MP8000 RJ45 jack. Another

way to connect via a network that has Wi-Fi is to use a low cost router (example: VONETS VAR11N-300 or similar).

To connect directly from a laptop to the MP8000, connect a standard Ethernet cable between the laptop and

the MP8000 RJ45 jack. You will need to conﬁgure according to the instructions in the MP8000 Point to Point

Conﬁguration Document.

MP8000 Programming Guide

MODBUS TCP CONFIGURATION

MODBUS Memory and Data Location Terminology / Register vs. Address

The MODBUS standard deﬁnes a memory location in terms of registers and addresses. The “register”

numbering system starts Xxxxxx1 and goes up to X65536, where the leading X is a reference number that

designates a register type. The “address” numbering system starts at 0 rather than 1 and does not contain

a preﬁx. The preﬁx indicates which read and write functions should be used to get or set the corresponding

location. The Modicon MODBUS Protocol Reference Guide refers to these XX references, such as 4X reference

for holding registers.

Older standards and products tend to use a 5-digit numbering system for registers. (Ex: 40,001 for the ﬁrst

holding register) However, other documentation is written using a 6-digit numbering system; MODBUS supports

registers up to 65536. (Ex: 400,001 for the ﬁrst holding register).

The “address” numbering system is deﬁned in the standard to describe the message that is actually sent to

the physical communications bus. By starting the addresses at 0 rather than 1 and by truncating the register

type preﬁx or reference, the number of usable memory or data locations is maximized. This document will use

the terms “address” and “location” interchangeably to refer to the actual address placed on the bus to get the

intended piece of data.

Supported MODBUS Message Function Codes

The following four function codes are supported. The 03 Read and 04 Read functions can be used on any

1. FUNCTION CODE 03 Read Holding Registers: Block read

2. FUNCTION CODE 04 Read Input Registers: Block read

3. FUNCTION CODE 06 Preset Single Register: Write one value

4. FUNCTION CODE 16 (0x10) Preset Multiple Registers: Block write

Registers are 16 bits. Many MP8000 parameters are stored as 32 bit integers. Therefore, two Register reads or

writes are required when accessing these parameters.

MP8000 Programming Guide

Read Command Example

A typical request for a Model MP8000 would be to ask for the 3 voltages (32 bits each) starting at address

0x0226, which are the Voltage between L1-L2, L2-L3, and L3-L1. In the example below, the values will be

returned as 481, 476, and 483 volts for these variables.

Assume that the Model MP8000 has been programmed with a device address of A02. The MODBUS command

message from the master device to a slave device would look like:

Byte Contents Example (in Hex)

1 Address of Slave Device 02

2 Command to Slave Device 03

3 High Byte of Address 02 .(Address of L1-L2)

4 Low Byte of Address 26

5 High Byte of Number of Registers 00 .(Read 6 registers)

6 Low Byte of Number of Registers 06

The above sequence would be a request to read 6 registers (12 bytes) starting at address 0x0226. The normal

response from the slave device to the master device would look something like:

Byte Contents Example (in Hex)

1 Address of Slave Device 02

2 Echo of Command to Slave Device 03

3 Number of Bytes sent back 10

4 High Byte of Word at 0017 00 (L1-L2 = 481)

5 Low Byte of Word at 0017 00

4 High Byte of Word at 0018 01

5 Low Byte of Word at 0018 E1

6 High Byte of Word at 0019 00 (L2-L3 = 476)

7 Low Byte of Word at 0019 00

6 High Byte of Word at 001A 01

7 Low Byte of Word at 001A DC

8 High Byte of Word at 001B 00 (L3-L1 = 483)

9 Low Byte of Word at 001B 00

8 High Byte of Word at 001C 01

9 Low Byte of Word at 001C E3

The voltage values listed would be values that might be expected from a 480 volt system.

The Address and Number-Of-Words-To-Send words are sent with the high byte ﬁrst followed by the low byte.

Special Notes When Using the 4X Addresses

Some software packages, such as Human-Machine-Interface (HMI) software packages for PLCs, can only use

registers from 400001 to 465536 in the MODBUS 03 and 06 commands.

If this is the case, add 400001 to the hexadecimal addresses in the tables to select the start of the data to read.

Many of these software packages will automatically subtract the 400001 part of the address before sending the

actual address in the MODBUS command.

MP8000 MODBUS MEMORY MAP

Many MP8000 parameters are stored as 32 bit integers. Therefore, two Register (deﬁned as 16 bits) reads or

writes are required when accessing these parameters. See the tables below for address and bit details. Although

all parameters are stored as integers (excluding the device name), the integers may be “scaled” in various ways.

See Table 3 - Memory Map Data Format Codes for details.

MP8000 Programming Guide

CONFIGURATION SETTINGS

Table 1 - MP8000 Memory Map Settings (Conﬁguration parameters)

FIELD

NAME

MODBUS REGISTER

DEFAULT DESCRIPTION FORMAT PERMISSION

ADDRES

HEX

ADDRESS

DECIMAL SIZE

CONFIGURATION REGISTERS

FW_REV 0x0000 0 2 0x03000000 Software Revision C R

PC 0x0002 2 1 0x8002 Product Code B R

MULT 0x0003 3 1 1Current Transformer Ratio B R/W

PT 0x0004 4 1 1Potential Transformer Ratio B R/W

LV 0x0005 5 2 600.00 Low Voltage Holdoff Condition H R/W

HV 0x0007 7 2 0.00 High Voltage Holdoff Condition H R/W

VUB 0x0009 9 1 5 Voltage Unbalance Holdoff Percentage G R/W

TC 0x000A 10 1 5 NEMA Trip Class B R/W

OC 0x000B 11 2 10.00 Overcurrent Threshold (FLA of motor) H R/W

UC 0x000D 13 2 5.00 Undercurrent Threshold H R/W

UCTD 0x000F 15 1 5 Undercurrent Trip Delay L R/W

CUB 0x0010 16 1 7 Current Unbalance Threshold G R/W

CUBTD 0x0011 17 1 30 Current Unbalance Trip Delay Q R/W

LIN 0x0012 18 1 0 Linear Overcurrent Trip Delay L R/W

RD0 0x0013 19 2 0 Restart Delay 0 L R/W

RD1 0x0015 21 2 0 Restart Delay 1 L R/W

RD2 0x0017 23 2 300 Restart Delay 2 L R/W

RD3 0x0019 25 2 300 Restart Delay 3 L R/W

RU 0x001B 27 1 1 Restart Attempts for Undercurrent Trips B R/W

RF 0x001C 28 1 1 Restart Attempts for all other faults B R/W

GF 0x001D 29 2 0 Ground Fault Current Threshold H R/W

GFTD 0x001F 31 1 50 Ground Fault Trip Delay S R/W

GFID 0x0020 32 1 0 Ground Fault Inhibit Delay L R/W

LKW 0x0021 33 2 0.00 Low Power Trip Threshold H R/W

HKW 0x0023 35 2 0.00 High Power Trip Threshold H R/W

HPRTD 0x0025 37 1 60 High Power Trip Delay C R/W

STLP 0x0026 38 1 0 Stall Percentage (of OC) B R/W

STLTD 0x0027 39 1 5 Stall Trip Delay Q R/W

STLID 0x0028 40 1 0 Stall Inhibit Delay Q R/W

MACCTRL 0x0029 41 1 0 Motor Acceleration Control Bits C R/W

MACTD 0x002A 42 1 0 Motor Acceleration Trip Delay Q R/W

ENDIS 0x002B 43 2 0 Feature Enable/Disable Mask C R/W

CNFG 0x002D 45 2 0x6001 Hardware Conﬁguration Fields C R/W

COMCFG 0x002F 47 2 0x00000000 Communication Conﬁguration C R/W

CAN_CNFG 0x0031 49 2 0x00000000 CAN Conﬁguration C R/W

MOD_CNFG 0x0033 51 2 0x00000000 ModBus Conﬁguration C R/W

NAME 0x0035 53 6 “” Friendly Device Name R R/W

CMD 0x003B 59 1 N/A Command Interface C W

* See Instruction Manual (IM) Ref section for more details

See Instruction Manual (IM) tables 4.2 & 4.5 for default values

NOTE: “Reserved” ﬁelds should be maintained as 0.

MP8000 Programming Guide

Table 2 - CNFG Details (Hardware Conﬁguration Control Register)

FIELD NAME BIT MASK DESCRIPTION

CNFG bit Masks

GFMT 0 0x0001 Ground fault motor trip selection, if set release motor on GF, is not set energize the

alarm relay

AUXCNTL 1 0x0002 AUX Relay Control

Disable BLE Module 2 0x0004 If bit set BLE module will be disabled

Reserved 3 0x0008

Reserved 4 0x0010

Single-Phase Motor 5 0x0020 Single phase motor operation

3-Phase w/1 Volt 6 0x0040 3phase motor with single voltage PT

Reserved 7 0x0080

Reserved 8 0x0100

PTC Enable 9 0x0200

Reserved 10 0x0400

Reserved 11 0x0800

CBA Phase Rotation 12 0x1000 Phase rotation

RD0 on Power Up 13 0x2000 RD0 on power up

RD1 on Current Loss 14 0x4000 RD1 on Current Loss

Reserved 15 0x8000

*Available in the listed Version or newer.

MP8000 Programming Guide

Table 3 - Memory Map Data Format Codes

All ﬁelds are in little endian

CODE DESCRIPTION SIZE BYTES

A uint8_t 1

B uint16_t 2

C uint32_t 4

D int8_t 1

E int16_t 2

F int32_t 4

G uint16_t Base 10.xx 2

H uint32_t Base 10.xx 4

I int16_t Base 10.xx 2

J int32_t Base 10.xx 4

K uint32_t Unix time_t 4

L uint32_t Seconds 4

M int32_t Seconds 4

N int16_t Signed Percentage 2

O uint8_t Base 10.x 1

P int16_t Power Factor 2

Q uint16_t Seconds 2

R String N/A

S uint16_t 1/10s of a Seconds (10 == 1 sec) 2

Command Register

Write to the Command Interface register (0x0076) to perform the following tasks.

Table 4 – CMD (Command Interface; address 0x0076)

*Available in the listed Version or newer.

Value Deﬁned Name Description

0x0009 CMD_MOTOR_RESTART Attempt to Restart the Motor

0x0010 CMD_RESET_MOTOR_SERVICE_TIME Reset Motor Service time to NOW

0x0011 CMD_FAULT_LOOKUP Fault Lookup (From FIDX and FRO) [Modbus only]

0x0012 CMD_RESET_FACTOR_DEFAULTS Reset Conﬁguration to Factory Defaults

0x0013 CMD_RESET_MOTOR_RUN_TIME Reset the amount of time current has been detected ﬂowing though

the MP8000

0x0014 CMD_RESET_MOTOR_SCNT Reset the number of times the motor has started

0x0020 CMD_FORCE_TRIP Force the MP8000 to trip, require restart to recover

0x0030 CMD_AUX_RELAY_OFF De-Energize/Release the AUX relay

0x0031 CMD_AUX_RELAY_ON Energize/Activate the AUX relay

0x0040 CMD_SET_BLE_DISABLE_BIT Set the BLE Disable bit of the CNFG register (bit 2) and stop BLE operation

0x0041 CMD_CLR_BLE_DISABLE_BIT Clear the BLE Disable bit of the CNFG register (bit 2) and allow

BLE operation

MP8000 Programming Guide

Real Time Status

All parameters listed in Table 5 - MP8000 Memory Map Real Time Status are updated every second.

Table 5 - MP8000 Memory Map Real Time Status

FIELD NAME

MODBUS REGISTER

DESCRIPTION FORMAT PERMISSION

ADDRESS

HEX

ADDRESS

DECIMAL SIZE

REALTIME STATUS REGISTERS

MST 0x0200 512 2 Time since motor last serviced

(can only be written to zero) L R

MRT 0x0202 514 2 Time since motor started L R

SCNT 0x0204 516 1 Start Count -- Number of Motor starts (since last

cleared) B R

FAULT_STAT 0x0205 517 2 Current Fault Status Mask C R

WARN_STAT 0x0207 519 2 Current Warning Status Mask C R

FAULT_CODE 0x0209 521 1 Indicates the reason we have tripped or are in holdoff B R

RTDT 0x020A 522 2 Remaining Trip Delay Time L R

RDR 0x020C 524 2 Restart Time Remaining L R

TCU 0x020E 526 1 Thermal Capacity Used B R

MLF 0x020F 527 1 Measured Line Frequency G R

SEQ 0x0210 528 1 Measured Phase Sequence B R

VUBM 0x0211 529 1 Measured Voltage Unbalance G R

CUBM 0x0212 530 1 Measured Current Unbalance G R

V1 0x0213 531 2 Measured line 1 Voltage RMS H R

V2 0x0215 533 2 Measured line 2 Voltage RMS H R

V3 0x0217 535 2 Measured line 3 Voltage RMS H R

I1 0x0219 537 2 Measured line 1 Current RMS H R

I2 0x021B 539 2 Measured line 2 Current RMS H R

I3 0x021D 541 2 Measured line 3 Current RMS H R

P1 0x021F 543 2 Measured line 1 Power C R

P2 0x0221 545 2 Measured line 2 Power C R

P3 0x0223 547 2 Measured line 3 Power C R

PF1 0x0225 549 1 Measured line 1 Power Factor P R

PF2 0x0226 550 1 Measured line 2 Power Factor P R

PF3 0x0227 551 1 Measured line 3 Power Factor P R

IGF 0x0228 552 2 Ground Fault Current H R

PTC 0x022A 554 1 Positive Temperature Coeﬁcent E R

MOTORR 0x022B 555 1 Motor Relay State (0-open, 1-energized) E R

AUXR 0x022C 556 1 Aux Relay State (0-open, 1-energized) E R

*Available in the listed Version or newer.

MP8000 Programming Guide

Fault Record Retrieval

There are two methods of requesting a fault record: By index, and by date. (See Table 6)

To request fault records by Index:

1. Write the fault index to the FRI register (0x300). Note, this index is zero based, so the most recent fault

record will have an index of zero.

a. Also the maximum valid index is 1023

2. Write to the CMD register (0x0076) with command 0x11 (see Table 4)

3. Continuously read the FRI register until it has been updated to 0xFFFF

4. The fault record is ready to read, starting at address 0x0308. (see Table 6)

To request fault records by date:

1. Write zero to the FRI register (0x0300).

2. Write the UNIX (32bit) time stamp to the FRO register (0x0304).

a. The log entry with the next earlier time entry will be retrieved.

3. Write to the CMD register (0x0076) with command 0x11 (see Table 4)

4. Continuously read the FRI register until it has been updated to 0xFFFF

5. The fault record is ready to read, starting at address 0x0308. (see Table 6)

Table 6 - Fault Record Retrieval

FIELD

NAME

MODBUS REGISTER

DESCRIPTION FORMAT PERMISSION

ADDRESS HEX ADDRESS

DECIMAL SIZE

FRI 0x0300 768 2Fault Request Index (Or base DT) C W

FRO 0x0302 770 2Fault Request Offset F W

FCODE 0x0304 772 2Fault Code indicating the source of the fault B R

FDT 0x0306 774 2Date Time of Fault K R

V1F 0x0308 776 2Measured line 1 Voltage RMS H R

V2F 0x030A 58 2Measured line 2 Voltage RMS H R

V3F 0x030C 780 2Measured line 3 Voltage RMS H R

I1F 0x030E 782 2Measured line 1 Current RMS H R

I2F 0x0310 784 2Measured line 2 Current RMS H R

I3F 0x0312 786 2Measured line 3 Current RMS H R

MRTF 0x0314 788 2Time since motor started H R

TCUF 0x0316 790 2Thermal Capacity Used L R

P1F 0x0318 792 2Measured line 1 Power C R

P2F 0x031A 794 2Measured line 2 Power C R

P3F 0x031C 796 2Measured line 3 Power C R

PF1F 0x031E 798 1Measured line 1 Power Factor P R

PF2F 0x031F 799 1Measured line 2 Power Factor P R

PF3F 0x0320 800 1Measured line 3 Power Factor P R

IGFF 0x0321 801 2Ground Fault Current H R

VUBF 0x0323 803 1Measured Voltage Unbalance G R

CUBF 0x0324 804 1Measured Current Unbalance G R

FAF 0x0325 805 1Frequency Measured from Phase A G R

SEQF 0x0326 806 1Measured Phase Sequence G R

FSDF 0x0327 807 5Fault Speciﬁc Data N.A R

Indice

Altri manuali Littlefuse Staffetta

Littlefuse

Littlefuse PGR-6150 Series Manuale utente

Manuali Staffetta popolari di altre marche

Shelly

Shelly Pro Series Manuale utente

GE MVAX 11 Manuale utente

ABB

ABB RELION REF615R Manuale utente

Pilz

Pilz PNOZ X10 Manuale del proprietario

ABB

ABB SPAJ 142 C Manuale elenco delle parti

Kemo Electronic

Kemo Electronic B197 Manuale utente

Seg

Seg MRM3 Manuale utente

Basler

Basler BE1-700C Manuale utente

CD Automation

CD Automation REVEX 2PH 280A Manuale utente

Ruelco

Ruelco 1S04 Manuale utente

Basler

Basler V3E Z1P B2C1F Manuale utente

Doepke

Doepke Dupline DSM 2 Manuale utente

Siemens

Siemens SIRIUS 3RT1966-4D Manuale utente

GE DGP Manuale utente

Kyongbo Electronics

Kyongbo Electronics GDR-D01 Manuale utente

Siemens

Siemens SIPROTEC 4 Manuale utente

Siemens

Siemens BD2-AK03X/FS Series Manuale utente

Leuze

Leuze MSI-SR5B Manuale utente