13
Features and Main Functions Section 1-1
Note (1) The Modbus-RTU easy master (available for all models) makes it easy to
control Modbus Slaves (such as Inverters) with serial communications.
After the Modbus Slave address, function, and data have been preset in
a fixed memory area (DM), messages can be sent or received indepen-
dently of the program by turning software switches.
(2) By using the serial PLC Links (available for all models), a maximum of 10
words of data per CPU Unit can be shared independently of the program
among a maximum of nine CPU Units (CP1H-CP1H-CJ1M) using RS-
422A/485 Option Boards.
7-segment LED
Display (All Models)
A two-digit 7-segment LED display makes it easy to monitor PLC status.
This improves the human-machine interface for maintenance, making it easier
to detect troubles that may occur during machine operation.
• Displays error codes and details for errors detected by the CPU Unit.
Modbus-RTU
Communications can be executed independently of
the program by setting a Modbus-RTU command in
the DM and turning ON a software switch.
Inverte
SYSMAC
CP1H
BATTERY
MEMORY
PERIPHERAL
POWER
ERR/ALM
BKUP
100CH 101CH
1CH
COMM
EXP
L1 L2/N COM 01 03 05 07 09 11 01 03 05 07 09 11
00 02 04 06 08 10 00 02 04 06 08
10
00 01 02 03 04 06 00 01 03 04 06
COM COM COM COM 05 07 COM 02 COM 05
07
IN
OUT
SYSMAC
CP1H
BATTERY
MEMORY
PERIPHERAL
POWER
ERR/ALM
BKUP
100CH 101CH
1CH
COMM
EXP
L1 L2/N COM 01 03 05 07 09 11 01 03 05 07 09 11
00 02 04 06 08 10 00 02 04 06 08
10
00 01 02 03 04 06 00 01 03 04 06
COM COM COM COM 05 07 COM 02 COM 05
07
IN
OUT
SYSMAC
CP1H
BATTERY
MEMORY
PERIPHERAL
POWER
ERR/ALM
BKUP
RUN
INH
PRPHL
100CH 101CH
COMM COMM
EXP
L1 L2/N COM
0CH 1CH
01 03 05 07 09 11 01 03 05 07 09 11
00 02 04 06 08 10 00 02 04 06 08
10
00 01 02 03 04 06 00 01 03 04 06
COM COM COM COM 05 07 COM 02 COM 05
07
IN
OUT
RS-422A/485
CP1H CPU Unit
(Master)
Data sharing
CP1H CPU Unit
(Slave)
CP1H CPU Unit
(Slave)
CJ1M CPU Unit
(Slave)
8 CPU Units max.
2-digit 7-segment LED display