Toshiba RSM 100 - Access via a protocol converter from a Remote PC

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6 F 2 S 0 7 1 5
2.3 Access via a protocol converter from a Remote PC
Figure 2.3.1 shows the configuration of the RSM system.
The relays are connected through twisted-pair cables and up to 32 relays can be connected. The
total length of twisted-pair cable should not exceed 1200 m. Terminal resistor (150 ohms) is
connected the last relay.
Relays are mutually connected using an RS485 port at the relay rear panel and connected to the
RS232C port of a PC via a protocol converter (G1PR1 or G1PR2).
Figure 2.3.1 Access from a Remote PC
Figure 2.3.2 Rear Connections
Twisted-pair
cable
Relay 3 Rela
y
32
RS232C (D-type
9-way connector,
Straight type)
Protocol
converter
Personal
computer
RS485
Relay 2
Relay 1
TB
16
17
18
16
17
18
Twisted-pair cable
To another relay
From PC RS232C port via a protocol
converter or other relay
CN1
A
E
TB1
Note: Terminal number depends on the relay model.
G1PR1 or
G1PR2