Error! Use the Home tab to apply Überschrift 1 to the text that you want to appear here. ComfortPoint
TM
Open System
EN1B-0498GE51 R0512
8
Cable Specifications
CPO-PC-6A Power Supply Cable Specifications
The length of the power supply cable includes the length of
cables to connected modules.
Table 7. CPO-IO830A power supply cable specifications
Cable length Cable cross-section
Max. 3 m min. 1.5 mm
2
(16 AWG)
The Panel Bus can be connected to RS485 interfaces 1, 2, 3,
and 4 of the CPO-PC-6A.
Cable type: Two pairs of twisted pair (1 pair is for ground
connection) complying with RS485 standard (level IV, 22
AWG, solid core, non-shielded), e.g., J-Y-Y 2 x 2 x 0.8
Field Device Power Supply Cable Specifications
Table 8. Field device power supply (24 Vac) cable
specifications
Cable length Cable cross-section
≤ 100 m (300 ft.), single
transformer
min. 1.5 mm
2
(16 AWG)
≤ 400 m (1300 ft.), separate
transformers
not allowed for > 100 m (300
ft)
Shielding and Protective Earth Grounding
In principle, data transmitting cables should be shielded in
case of RFI. The shield should be connected to the wiring
cabinet.
The ComfortPoint
TM
Open Mixed I/O Panel Bus Module
complies with SELV (Safety Extra-Low Voltage). Earth
grounding is therefore not recommended.
Tools and Other Connected Devices
General
The CPO-IO830A is controlled by the CPO-PC-6A Plant
Controller.
During engineering using ComfortPoint
TM
Open Studio – see
also ComfortPoint Open Plant Controller – User Guide
(EN2B-0363GE51) – the user must define:
• the bus type of the individual RS485 interfaces (i.e., CP-
IO Bus, Field Bus, Modbus, Panel Bus, or BACnet Bus)
and
• the terminal assignments of the connected modules (e.g.,
CP-EXPIO, ComfortPoint
TM
Open Field Bus Adapters,
Modbus devices, Panel Bus I/O modules, ComfortPoint
TM
Open VAVII modules, etc.),
This must be done in accordance with the given application.
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