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Hardware Specifications
1
7. Connecting Method
Multistage Terminal Board (TB1)
The following 3 methods are available for connecting POD(s) to PLC(s).
1:1 Link Communication
One unit of POD is connected to one unit of PLC.
For more information, refer to 1-8 (1:1 Link Communication ) (on page P1-21).
POD
PLC
run
¥ ¥ ¥
¥ ¥ ¥
¥ ¥ ¥
stop
¥ ¥ ¥
¥ ¥ ¥
¥ ¥ ¥
¥ ¥ ¥
¥ ¥ ¥
¥ ¥ ¥
¥ ¥ ¥
¥ ¥ ¥
¥ ¥ ¥
¥ ¥ ¥
¥ ¥ ¥
¥ ¥ ¥
¥ ¥ ¥
ENB
F4
SYSTEM
F5
F1
F6
F2
F7
F3
SW3
SW1
SW4
SW2
POWER
RS-232C or RS-422 (RS-485)
1:n Link Communication (Multi-drop)
For more information, refer to 1-9 (1:n Link Communication) (on page P1-23).
POD
ENB
F4
SYSTEM
F5
F1
F6
F2
F7
F3
SW3
SW1
SW4
SW2
POWER
RS-485. Maximum length: 500 m
run
stop
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
run
•••
•••
•••
•••
stop
PLC1
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
run
•••
•••
•••
•••
stop
PLC2
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
run
•••
•••
•••
•••
stop
PLC3
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
PLCn
n:1 Link Communication (Multi-link)
Fore more information, refer to 1-10 (n:1 Link Communication) (on page P1-25).
[POD] 1
[POD] 2
[POD] 3
ENB
[POD] n
ENB
ENB
ENB
F4
F4
SYSTEM
F4
SYSTEM
F4
SYSTEM
SYSTEM
F5
F1
F5
F1
F5
F1
F5
F6
F2
F6
F2
F6
F2
F6
F7
F3
F7
F3
F7
F3
F7
F3
SW3
SW1
SW3
SW1
SW3
SW1
SW3
SW1
SW4
SW2
SW4
SW2
SW4
SW2
SW4
SW2
POWER
POWER
F1
F2
POWER
POWER
RS-485. Maximum length: 500 m
run
stop
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
•••
PLC
1-19