Up to 128 standard inputs (conventional IO, see optional IO modules)
Addressing for Modbus devices (Modbus RTU and Modbus TCP)
Input
See SITRANS RD500 module specifications table
Output
See SITRANS RD500 module specifications table
Accuracy
See SITRANS RD500 module specifications table
Rated operating conditions
Storage temperature range
-30 … +70 ?C (-22 … +158 ?F)
Operating temperature
0 … 50 ?C (32 … 122 ?F)
Operating and storage humidity
80 % max relative humidity, non-condensing, from 0 … 50 °C (32 … 122 °F)
Design
Material (enclosure)
High impact plastic and stainless steel
Installation category
I
Pollution degree
2
Weight
456.4 g (15.1 oz)
Mounting
Snaps onto standard DIN style top hat (T) profile mounting rails according to EN 50022 – 35 x 7.5 and – 35 x 15
Power
24 V DC ± 10 %
400 mA min. (1 module)
3.5 amps max. (16 modules)
Must use Class 2 or SELV-rated power supply
Display
Status LEDs
STS - status LED indicates condition of master
TX/RX - transmit/receive LEDs show serial activity
Ethernet - link and activity LEDs
CF - CompactFlash LED indicates card status and read/write activity
Memory
On-board user memory
4 MB of non-volatile Flash memory
On-board SDRAM
2 MB
Memory card
CompactFlash Type II slot for Type I and Type II cards; 1 GB (optional 2 GB)
Certificates and approvals
Safety
UL listed to U.S. and Canadian safety standards for use in Class I, II, and III, Division 1 and 2 hazardous locations
CE, RCM
Communication
USB/PG port
Adheres to USB specifications 1.1. Device only using Type B connection.
Serial ports
Format and baud rates for each port are individually software programmable up to 115, 200 baud
RS232/PG port
RS 232 port via RJ12
Comms ports
RS 422/485 port via RJ45 and RS 232 port via RJ12
Ethernet port
10 BASE-T/100 BASE-TX; RJ45 jack is wired as a NIC (Network Interface Card)
SITRANS RD500 Module Specifications
8 inputs, 6 solid state outputs
8 inputs, 6 relay outputs
8 channel, 4 … 20 mA
8 channel ± 10 V
6 channel, RTD
8 channel thermocouple module
Order number
7ML1930-1ES
7ML1930-1ER
7ML1930-1EP
7ML1930-1EQ
7ML1930-1ET
7ML1930-1EU
Application
8 inputs, 6 outputs used to monitor contact or sensor inputs
8 inputs, 6 outputs used to monitor contact or sensor inputs
16 bit analog input module provides high density signal measurement for data monitoring applications and accepts 0/4 … 20 mA process signals
16 bit analog input module provides high density signal measurement for data monitoring applications and accepts ± 10 V process signals
16 bit analog input module provides high-density signal measurement for data acquisition applications and accepts various RTD inputs
16 bit thermocouple input module provides high density signal measurement for data acquisition applications and accepts wide range of thermocouple types
Accuracy
Not applicable
Not applicable
± 0.1 % of span
± 0.1 % of span
± (0.2 % of span, 1 °C) 0 … 50 °C (32 … 122 °F); ± (0.1 % of span, 1 °C) 18 … 28 °C (64 … 82 °F); includes NIST conformity, A/D conversion errors, temperature coefficient and linearization conformity at 23 °C after 20 minutes warm-up
± (0.3 % of span, 1 °C); includes NIST conformity, cold junction effect, A/D conversion errors, temperature coefficient and linearization conformity at 23 °C after 20 minute warm-up
Mounting
Snaps onto standard DIN style top hat (T) profile mounting rails according to EN 50022 – 35 x 7.5 and - 35 x 15
Inputs
Dip switch selectable for sink or source
Dip switch selectable for sink or source max. voltage: 30 V DC, reverse polarity protected Off voltage: < 1.2 V On voltage: > 3.8 V
8 single-ended ranges: 0 … 20 mA or 4 … 20 mA resolution: full 16-bit
Sample time: 50 … 400 ms depending on number of enabled inputs
8 single-ended ranges: 0 … 10 V DC or ± 10 V DC resolution: full 16-bit
Sample time: 50 … 400 ms depending on number of enabled inputs
6 single-ended resolution: full 16-bit
Sample time: 67 … 400 ms depending on number of enabled inputs
8 single-ended resolution: full 16-bit
Sample time: 50 … 400 ms depending on number of enabled inputs
Outputs
Solid state output, switched DC, contact rating 1 A DC max.
Form A, NO pairs share common terminals: 1&, 3&4, 5&6 Current rating by pair: 3 Amps at 30 V DC/125 V AC resistive 1/10 HP at 125 V AC
Not applicable
Not applicable
Not applicable
Not applicable
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