1.7.6.2.1 Intended Purpose
The PROFINET bus modules CI501-PNIO and CI502-PNIO are used as communication inter-
face modules in PROFINET networks. The network connection is performed by Ethernet cables
which are inserted in the RJ45 connectors in the terminal unit. An Ethernet switch in the com-
munication interface module allows daisy chaining of the network.
For usage in enhanced ambient conditions (e.g. wider temperature and humidity range), a spe-
cial XC version of the device is available.
1.7.6.2.2 Functionality
The bus module contains 22 I/O channels with the following properties:
● 4 configurable analog inputs (2-wire / single-ended) or 2 configurable analog inputs (3-wire /
differential) (1.0...1.3)
● 2 analog outputs (1.5...1.6)
● 8 digital inputs 24 VDC in 1 group (2.0...2.7)
● 8 digital outputs 24 VDC, 0.5 A max. in 1 group (3.0...3.7)
The inputs/outputs are electrically isolated from the PROFINET network. There is no potential
separation between the channels. The configuration of the analog inputs/outputs is performed
by software.
Parameter Value
Interface Ethernet
Protocol PROFINET IO RT
Power supply From the process supply voltage UP
Supply of the electronic circuitry of the I/O
expansion modules attached
Through the expansion bus interface (I/O bus)
Rotary switches For setting the I/O device identifier for configu-
ration purposes (00h to FFh)
LED displays For system displays, signal states, errors and
power supply
External supply voltage Via terminals ZP, UP and UP3 (process supply
voltage 24 VDC)
Effect of incorrect input terminal connection Wrong or no signal detected, no damage up to
35 V
Required terminal unit
TU507 or TU508
Ä
Chapter 1.4.1 “TU507-ETH
and TU508-ETH for Ethernet Communication
Interface Modules” on page 145
1.7.6.2.3 Electrical Connection
The Ethernet bus module CI501-PNIO is plugged on the I/O terminal unit TU507-ETH or
TU508-ETH
Ä
Chapter 1.4.1 “TU507-ETH and TU508-ETH for Ethernet Communication Inter-
face Modules” on page 145. Properly seat the module and press until it locks in place. The ter-
minal unit is mounted on a DIN rail or with 2 screws plus the additional accessory for wall
mounting (TA526
Ä
Chapter 1.8.2.4 “TA526 - Wall Mounting Accessory” on page 1152).
The electrical connection of the I/O channels is carried out using the 30 terminals of the I/O ter-
minal unit. I/O modules can be replaced without re-wiring the terminal units.
Communication Interface Modules (S500) > PROFINET
2019/04/173ADR010121, 13, en_US1008
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