M-system R1M, R1M-GH Reference Manual

MODEL: R1M-GH

Remote I/O R1M Series

40
(1.57)

115

(4.53)

mm (inch)

175 (6.89)

Rugghölzli 2
CH - 5453 Busslingen

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Fax [phone]

[e-mail]

www.sentronic.com

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RUN indicator LED: Green light blinks in normal conditions.

THERMOCOUPLE & DC INPUT MODULE

(16 points)
Functions & Features

• 16-point thermocouple or DC inputs

• Easy system expansion via Modbus RTU

MODEL: R1M-GH2T-[1]

ORDERING INFORMATION

• Code number: R1M-GH2T-[1]
Specify a code from below for [1]
e.g. R1M-GH2T-M2

FIELD TERMINAL TYPE

T: M3 screw terminals

[1] POWER INPUT

AC Power

M2: 100 – 240 V AC (Operational voltage range 85 – 264 V,
47 – 66 Hz)

DC Power

R: 24 V DC

(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)

RELATED PRODUCTS

• Resistor module (model: REM3-250)

• R1X configurator software (model: R1CON)
Downloadable at M-System’s web site.
A dedicated cable is required to connect the module to the
PC. Please refer to the internet software download site or
the users manual for the PC configurator for applicable
cable types.

GENERAL SPECIFICATIONS

Connection
Power input, transmission: Euro type connector terminal
RS-232-C: 9-pin D-sub connector (male)
I/O: M3 screw terminals
Isolation: Input to RS-232-C or RS-485 to power
Address setting: Rotary switch; 1 – F (15 nodes)

COMMUNICATION

Baud rate: 38.4 kbps
Communication: Half-duplex, asynchronous, no procedure
Protocol: Modbus RTU
Protocol: Modbus RTU
Refer to Modbus Protocol Reference Guide (EM-5650) for
supported functions.

■ RS-232-C
Standard: Conforms to RS-232-C, EIA
Transmission distance: 10 meters max.

■ RS-485
Standard: Conforms to RS-485, EIA
Transmission distance: 500 meters max.
Transmission media: Shielded twisted-pair cable (CPEV-S

0.9 dia.)

INPUT SPECIFICATIONS

Input: Thermocouple or DC input, 16 points
(Common negative for DC input)
Measuring Range:
±20 V, ±5 V, ±1 V, ±0.8 V, ±0.2 V, ±50 mV, ±10 mV
Input resistance: 300 kΩ
Thermocouple types: PR, K, E, J, T, B, R, S, C, N, U, L, P
Sampling rate: 100 millisec./16 points

• Trigger input: Dry contact; ON detected at ≤1.5 V
Sensing: Approx. 5 V DC @ 1 mA

INSTALLATION

Power Consumption

•AC: Approx. 10 VA

•DC: Approx. 7 W
Operating temperature: -5 to +60°C (23 to 140°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface or DIN rail
Weight: 400 g (0.88 lbs)

PERFORMANCE (% of measuring range)

Accuracy
DC input: ±0.3 %
Thermocouple input: See the table on the end of this
section.
Cold junction compensation error: ±3°C or ±5.4°F max.
(at 20°C ±10°C or 68°F ±18°F)
Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)
±0.05 %/°C (±0.03 %/°F) for 10 mV range
Insulation resistance: ≥100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @ 1 minute (input to RS-232­C or RS-485 to power to ground)

MODEL: R1M-GH

Thermocouple Accuracy

T/C

USABLE RANGE

ACCURACY

°C °F (%)

(PR) 0 to 1770 32 to 3218 ±0.5*

1

K (CA) -270 to +1370 -454 to +2498 ±0.3
E (CRC) -270 to +1000 -454 to +1832 ±0.7

J (IC) -210 to +1200 -346 to +2192 ±0.7
T (CC) -270 to +400 -454 to +752 ±1.0
B (RH) 100 to 1820 212 to 3308 ±0.7*

2

R -50 to +1760

-58 to +3200 ±0.7*

1

S -50 to +1760 -58 to +3200

±0.7*

1

C (

WRe 5-26

) 0 to 2320 32 to 4208 ±0.7

N -270 to +1300 -454 to +2372 ±0.5
U -200 to +600 -328 to +1112 ±0.5
L -200 to +900 -328 to +1652 ±0.3
P (

Platinel II

) 0 to 1395 32 to 2543 ±0.5

*1. ≥400°C or ≥752°F
*2. ≥700°C or ≥1292°F

The described accuracy may be partially not satised when
the temperature ranges below 0°C.

STANDARDS & APPROVALS

RS-485
Connector

Power Terminals

Address Setting
Rotary SW

Configurator
Jack

RUN Indicator
LED

RS-232-C
9-pin Connector

Rugghölzli 2
CH - 5453 Busslingen

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Fax [phone]

[e-mail]

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Produkte, Support und Service

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TRONIC

AG

CE conformity:
EMC Directive (2004/108/EC)
EMI EN 61000-6-4: 2007
EMS EN 61000-6-2: 2005
Low Voltage Directive (2006/95/EC)
EN 61010-1
Installation Category II
Pollution Degree 2
Input or RS-232-C/RS-485 to power: Reinforced insulation
(300 V)
Input to RS-232-C/RS-485: Basic insulation (300 V)

EXTERNAL VIEW

MODEL: R1M-GH

ABBR. PIN NO. EXPLANATION OF FUNCTION

BA (SD) 2 Transmitted Data
BB (RD) 3 Received Data
AB (SG) 5 Signal Common

CB (CS) 7 Clear to Send
CA (RS) 8 Request to Send

1 Not Used.
4 DO NOT connect. Connecting may
6 cause malfunctions.
9

1 5

6 9

■ RS-232-C INTERFACE

CONNECTION DIAGRAM

RS-232-C

T3
T4

T2

T1

T7

T6

T5

Term.

Resist.

Output
Circuit

When the device is located at the end of a transmission line via twisted-pair cable,
(when there is no cross-wiring), close across the terminal T2 –T3 with the attached
jumper pin (or with a leadwire).
When the device is not at the end, remove the jumper pin.

Remark 1: This device is not designed to cancel noise included in the input signals.
Be careful to eliminate such noise by using shielded cables.
Remark 2: Be sure to maintain the same potential at all the common negative
terminals for DC input.

*

9

8

7

6

5

4

3

2

1

10

12

11

13

15

14

16
17
18

20

19

21
22
23
24
25

27

26

28
29
30
31
32
33

35

34

36

TRIGGER INPUT

T/C INPUT

–

+

DC INPUT

INPUT 1

+
–

INPUT 2

INPUT 3

INPUT 4

INPUT 5

INPUT 6

INPUT 7

INPUT 8

INPUT 9

INPUT 10

INPUT 11

INPUT 12

INPUT 13

INPUT 14

INPUT 15

INPUT 16

CJC

Sensor

+

ext. wire

–

+

–

+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–

Power
Circuit

Input

Circuit

+

–

Shielded Twisted-pair Cable

To Other
I/O Modules

Jumper*

FG

U (+)
V (–)

POWER

D-SUB CONNECTOR

Rugghölzli 2
CH - 5453 Busslingen

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[e-mail]

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Note: In order to improve EMC performance, bond the FG terminal to ground.
Caution: FG terminal is NOT a protective conductor terminal.

MODEL: R1M-GH

MODBUS WIRING CONNECTION

R1M

T1
T2
T3
T4

R1M

T1
T2
T3
T4

T1
T2
T3
T4

R1M

CONNECTO

R

RS-232-C

RS-485

*

1

*

1

*1. Internal terminating resistor is used when the device is at the end of a transmission line.
*2. Install shielded cables to all sections and ground them at single point.

*

2

FG

RS-485

■ COMMUNICATION PARAMETERS
PARAMETER SPECIFICATION

Data Mode RTU
Baud Rate 9600 / 19200 / 38400 (*) bps

Parity None / Odd (*) / Even

Bit Length 8

Stop Bit 1 (*) / 2

Node Address 1 (*) to 15

Floating Point Data N/A

Interface RS-232-C/ RS-485

(*) Ex-factory setting

■ FUNCTION CODES & SUPPORTED CODES
CODE NAME

01 Read Coil Status X Digital output from the slave
02 Read Input Status X Status of digital inputs to the slave
03 Read Holding Registers X General purpose register within the slave
04 Read Input Registers X Collected data from the field by the slave
05 Force Single Coil X Digital output from the slave
06 Preset Single Registers X General purpose register within the slave
07 Read Exception Status
08 Diagnostics
09 Program 484
10 Poll 484
11 Fetch Comm. Event Counter Fetch a status word and an event counter
12 Fetch Comm. Event Log A status word, an event counter, a message count and a field of event bytes
13 Program Controller
14 Poll Controller
15 Force Multiple Coils X Digital output from the slave
16 Preset Multiple Registers X General purpose register within the slave
17 Report Slave ID Slave type / ‘RUN’ status
18 Program 884/M84
19 Reset Comm. Link
20 Read General Reference
21 Write General Reference
22 Mask Write 4X Register
23 Read/Write 4X Register
24 Read FIFO Queue

Rugghölzli 2
CH - 5453 Busslingen

Tel. [phone]

Fax [phone]

[e-mail]

www.sentronic.com

Produkte, Support und Service

SEN

TRONIC

AG

MODBUS COMMUNICATION