Emerson PACSystems RSTi-EP - 5.7 Digital Input Module EP-153 F

User Manual Section 5
GFK-2958L May 2021
Detailed Description of I/O Modules 153
Figure 63: Block Diagram EP-1804
5.4.2 Specifications EP-1804
Specification
Description
System data
Data
Process, parameter and diagnostic data depend on the network adapter
used (refer to Section 3.1, Order and Arrangement of Modules).
Interface
RSTi-EP I/O communication bus
System bus transfer rate
48 Mbps
Galvanic isolation
4kV between the channels as well as between channels and power supply
Line-to-line voltage
400V between the channels possible
Inputs
Number
4
Input type
P-switching, for Type 3 sensors as per IEC 61131-2
Input filter
Input delay 10ms
Low input voltage
< 65V
High input voltage
> 80V
Input voltage maximum
277Vac (UL); 264,5Vac (VDE)
Input frequency, typical
50 Hz, 60 Hz
Sensor supply
No
Sensor connection
2-wire
Module diagnosis
Yes
Individual channel diagnosis
No
Supply
Supply voltage
20.4V – 28.8V
Current consumption from system
current path ISYS
8 mA
Current consumption from input current
path IIN
Nil
General data
Weight
89 g (3.07 oz)
5.4.3 Diagnostic Data EP-1804
Name
Bytes
Bit
Description
Default