IDEC FC4A-C10R2 User Manual page 82

2: M S
ODULE PECIFICATIONS
Communication Adapter and Communication Module Specifications
Type No.
Standards
Maximum Baud Rate
Maintenance Communication
(Computer Link)
User Communication
Modem Communication
Data Link Communication
Quantity of Slave Stations
Maximum Cable Length
Isolation between Internal Circuit
and Communication Port
Note 1: RS485 user communication is available on upgraded CPU modules only, see page 17-1.
Note 2: Recommended cable for RS485: Twisted-pair shielded cable with a minimum core wire of 0.3 mm
Conductor resistance 85 Ω/km maximum, shield resistance 20 Ω/km maximum.
The proper tightening torque of the terminal screws on the RS485 communication adapter and RS485 communication mod-
ule is 0.22 to 0.25 N·m. For tightening the screws, use screwdriver SZS 0,4 x 2,5 (Phoenix Contact).
Installing the Communication Adapter and Communication Module
• Before installing the communication adapter or communication module, turn off the power to the
Caution
MicroSmart
aged, or the
Communication Adapter
To install the communication adapter on the all-in-one type CPU module, open the hinged lid and remove the dummy car-
tridge. Push the communication adapter into the port 2 connector from the front until it bottoms and is secured by the
latches. Similarly, when installing the communication adapter on the HMI base module, open the hinged lid, and push the
communication adapter into the port 2 connector from the front until it bottoms and is secured by the latches.
Communication Adapter
Hinged Lid
Port 2 Connector
2-62
FC4A-PC1
FC4A-HPC1
EIA RS232C
19,200 bps
Possible
Possible
Possible
Not possible
—
Special cable
Not isolated
CPU module. Otherwise, the communication adapter or CPU module may be dam-
may not operate correctly.
MicroSmart
Dummy Cartridge
After installing the communication adapter,
attach the dummy cartridge again.
« FC4A M
FC4A-PC2
FC4A-HPC2
EIA RS485
19,200 bps
Possible
Not possible
Not possible
Not possible
—
Special cable
Not isolated
Communication Adapter
Hinged Lid
S U ' M
ICRO MART SER S ANUAL
FC4A-PC3
FC4A-HPC3
EIA RS485
Computer link: 19,200 bps
User com.:
Data link:
Possible
Possible (Note 1)
Not possible
Possible
31
200m (Note 2)
Not isolated
Port 2 Connector
»
19,200 bps
38,400 bps
2
.