Access Via A Protocol Converter From A Remote Pc - Toshiba RSM 100 Instruction Manual

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).
Relay 32
To another relay
Relay 3
Personal
computer
Figure 2.3.1 Access from a Remote PC
Note: Terminal number depends on the relay model.
Figure 2.3.2 Rear Connections
⎯ 6 ⎯
Relay 2
Protocol
converter
G1PR1 or
G1PR2
RS232C (D-type
9-way connector,
Straight type)
TB
A
CN1
E
TB1
16 16
17 17
18 18
Twisted-pair cable
From PC RS232C port via a protocol
converter or other relay
6 F 2 S 0 7 1 5
Relay 1
Twisted-pair
cable
RS485