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RMS1 – GR User’s Manual Exemys
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The Exemys products are in permanent evolution to satisfy the needs of our clients. For this
reason, specifications and capabilities are subject to change without previous notice.
Please find updated information at www.exemys.com
opyright © Exemys, 2008. All Rights Reserved.
Rev. 6
RMS1 – GR User’s Manual Exemys
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Contents
1Introduction 4
1.1 Purpose of this manual............................................................................................ 4
1.2 Conventions, terms and abbreviations .................................................................... 4
1.3 General Description of the Product ......................................................................... 4
1.4 Power Supply .......................................................................................................... 6
1.5 Serial Port Connection ............................................................................................ 7
1.5.1 RS-232 Connection ................................................................................................. 7
1.5.2 RS-485 Connection ................................................................................................. 7
1.6 LED Indicators......................................................................................................... 8
2Models 10
.1 Models................................................................................................................... 10
3Serial Configuration 11
3.1 General Description .............................................................................................. 11
3.2 Screens and Configuration Menus ........................................................................ 11
4Modbus Map 14
4.1 Description of the Modbus Map............................................................................. 14
5Modbus master 16
6Pin out 18
6.1 Abbreviations and definitions ................................................................................ 18
6.2 Inputs/outputs groups............................................................................................ 18
6.3 Pin out of existing models ..................................................................................... 18
A Technical Specifications 21
1. Power Consumption............................................................................................................. 21
2. Digital inputs ........................................................................................................................ 21
3. Digital outputs ...................................................................................................................... 22
4. Digital output to drive a relay................................................................................................ 23
5. The relay outputs ................................................................................................................. 23
6. Analog inputs ....................................................................................................................... 24
7. RS485 Connection............................................................................................................... 31
RMS1 – GR User’s Manual Exemys
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1Introduction
1 1 Purpose of this manual
The purpose of this manual is to provide the instructions to simply and quickly install and
operate the RMS1 – GR equipment.
The manual begins with a general description of the product followed by the instructions for a
correct hardware installation. Its configuration and operation of the device are later described
in detail.
1 2 Conventions, terms and abbreviations
Abbreviation
Description
AS II
American Standard ode for Information Interchange
RTU
Remote Terminal Unit
GND
Ground (Reference to tension)
1 3 General Description of the Product
The RMS1-GR is a device for the acquisition and control of digital and analog inputs and
outputs, by means of the Modbus Slave Serial AS II/RTU.
The equipment has up to 16 opto-isolated or transistor inputs, up to 16 transistor or relay
outputs and up to 6 analog inputs (0-10V / 4-20mA), all according to the different models of
equipment.
The serial communication is made by means of an RS232 or RS485 serial port.
By means of a device or Modbus Master software, it is possible to obtain the status of inputs
and modify the status of outputs, individually or in groups.
onnecting two RMS1-RM you can create I/O tunnels.
Summing up the features of the equipment are:
•Up to 16 digital inputs, opto-isolated or transistor
•Up to 16 digital outputs, transistor or with relay
•Up to 6 analog inputs (0-10V)
•1 RS232 / RS485 serial Port
•Modbus Slave communications protocol AS II or RTU
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1 4 Power Supply
Figure 1 - Power Supply Terminals
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1 5 Serial Port Connection
The RMS1-GR has an RS232 serial port in a DB9 connector or an RS485 serial port in a RJ45
connector.
Important Note: Only one port at a time can be used and not simultaneously.
1 5 1 RS-232 Connection
Figure 2 –RS232 serial connection cable
1 5 2 RS-485 Connection
Figure 3 –RS-485 Connection
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1 6 LED Indicators
RMS1-GR device has 3 LED Indicators: Power, Rx and Tx
Power LED
This LED indicates different device statuses.
When energizing the equipment, the Power LED flickers rapidly during the first 7 seconds,
indicating the time to enter the “ FG” command that gives you access to the configuration of
the device. If you have not entered the command within this time, the Power LED remains
ON during the rest of the operation, indicating that the equipment is energized.
In case the command FG is entered, the Power LED flickers slower while remaining in the
configuration mode. When you exit this mode, the LED remains permanently ON.
Tx and Rx LED’s
The Rx LED flickers when it receives a Modbus packet from the master, even if this packet is
not for the slave ID that is receiving it.
The Tx LED flickers when a valid Modbus packet is sent to the master. When exceptions are
sent it does not flicker.
Figure 4 – LED’s in the front panel
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Power LED
Rx LED
Tx LED
Description
Very fast
blink
RMS1
-
GR is starting. 7 seconds are given to enter
the configuration mode through the FG command
via console.
Slow blink
RMS1
-
GR has entered the configuration mode of the
equipment.
Single
blink
RMS1
-
GR is receiving a
Modbus
packet from t
he
master.
Single
blink
RMS1
-
GR is sending a valid
Modbus
packet to the
master.
Steady ON
RMS1
-
GR is configured and ready to respond to
queries from the Modbus Master.
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2Models
2 1 Models
The RMS1-GR family of products has different types of digital and analog inputs and outputs.
•Up to 16 Digital Inputs, Opto-isolated or transistor
•Up to 16 Digital Outputs, Transistor or with relays
•UP to 6 analog inputs (0-10V)
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