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3.5 Wiring COM
Terminal layout
- Power supply and COM. port
- COM. Port specifications
COM. port type
Isolation status with the
internal circuit
Transmission distance
Baud rate
Communication method
Synchro system
Transmission data
format
Data output order
No. of connected units
Communication mode
Note1) When communicating between FP-e and other device, it is recommnedable to perform resend
Processing as it may be affected by excessive noise depending on the environments installed.
Note2) For RS232C wiring, be sure to use shield wires for higher noise immunity.
Note3) Set the baud rate of RS485 to both FP-e system register and FP-e internal switch. Set the baud rate
of RS232C to FP-e system register.
Note4) After sending a command from the FP-e in RS485
communication, send a response from the receiving
device to the FP-e after the following time has been
elapsed.
9600 bit/s: 2 ms or longer
19200 bit/s: 1 ms or longer
It takes at least 1 scan time (at least 2 ms) for the FP-e to send
back a response after receiveing the command.
Note5) When our C-NET Adapter or other RS485 device than recommended is connected in the system,
the maximum connection number is limited to 32 units.
Note6) For a RS485 converter on the computer side, SI-35 (from LINE EYE Co., Ltd.) is recommended.
(When SI-35 is used in the system, up to 99 units can be connected.)
Note7) MODBUS S RTU (binary communication) is available with FP-e Ver. 1.2 or higher.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
Port
.
*Note 2
RX232C
Non-isolated
15 m
300, 600, 1200, 2400, 4800, 9600,
19200 bit/s
Half-duplex
Synchronous communication method
Stop bit: 1-bit/2-bit
Parity: None/Even/Odd
Data length: 7-bit/8-bits
Beginning code: STX available/STX not available
Ending code: CR/CR+LF/None/ETX
Starting from 0 bit per character
−
- General-purpose communication
- Computer link
- MODBUS S RTU *Note7
RS485
Isolated
1200 m
*Note 3, 4
9600, 19200 bit/s
*Note 5, 6
99
3-13
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