Connecting Rs485 Equipment Through Rs485 Port 2; Rs485 User Communication System Setup - IDEC FC4A-C10R2 User Manual

17: U C
SER OMMUNICATION

Connecting RS485 Equipment through RS485 Port 2

Upgraded slim type CPU modules can use the RS485 user communication function. Using the RS485 user communica-
tion, a maximum of 31 RS485 devices can be connected to the
When using port 2 for RS485 communication on the slim type CPU module, mount the RS485 communication module
(FC4A-HPC3) next to the CPU module.
When using port 2 for RS485 communication on the slim type CPU module with the optional HMI module, install the
RS485 communication adapter (FC4A-PC3) to the port 2 connector on the HMI base module (FC4A-HPH1).
Connect RS485 device to the RS485 terminals A, B, and SG of port 2 on the
twisted pair cable as shown below. The total length of the cable for the RS485 user communication can be extended up to
200 meters (656 feet).

RS485 User Communication System Setup

RS485 Communication Adapter
HMI Base Module
FC4A-HPH1
RS485 Communication Module
FC4A-HPC3
17-4
I
NSTRUCTIONS
Port 2
FC4A-PC3
Port 2
« FC4A M
CPU module.
MicroSmart
RS485 Device
S U ' M
ICRO MART SER S ANUAL
CPU module using a shielded
MicroSmart
31 devices maximum
RS485 Device
Shielded twisted pair cable
200 meters (656 feet) maximum
2
Core wire 0.3 mm
»
RS485 Device