| Interface |
RS-485, CS31 protocol |
| Supply of the module’s electronic circuitry |
From UP and ZP (power supply) |
| Supply of the electronic circuitry of the I/O expansion modules attached |
Through the expansion bus interface (I/O bus) |
| Address switches |
For setting the CS31 field bus address (0 to 99) |
| Digital inputs |
8 (24 VDC) |
| Digital inputs/outputs |
16 (24 VDC) |
| Fast Counter |
Integrated, many configurable operating modes |
| LED displays |
For system displays, signal statuses, errors and power supply |
| External supply voltage |
Via the terminals ZP and UP (process voltage 24 VDC) |
| Effect of incorrect input terminal connection |
Wrong or no signal detected, no damage up to 35 V |
| Required terminal unit |
TU551-CS31 or TU552-CS31 TU551-CS31 and TU552-CS31 for CS31 Communication Interface Modules |
