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3-7SectionOne-to-one PC Link Connections
31
The 1:N NT Link is possible only with the SRM1-C02-V2 PCs, which have an
RS-232C port.
Cable Connections The SRM1 can be connected to OMRON PTs via the RS-232C port, as shown in
the following illustration. OMRON PTs that support the 1:N NT Link must be
used.
Programmable Terminals
SRM1
NT-AL001
Adapter
Connecting Cable
RS-422
Note 1. For details on RS-422A connections, refer to the Programmable Terminal’s
Operation Manual.
2. For details on RS-232C connections, refer to 3-4-4 RS-232C Port Wiring.
PC Setup Settings Set the RS-232C port’s communications mode to 1:N NT Link in DM 6645 in the
PC Setup. For details, refer to 1-1 PC Setup or 4-4-4 One-to-N NT Link Commu-
nications in the CPM1/CPM1A/CPM2A/CPM2C/SRM1(-V2) Programming
Manual (W353).
3-7 One-to-one PC Link Connections
3-7-1 Basics
An SRM1 can be linked one-to-one to an SRM1, CQM1, CPM1, CPM1A,
CPM2A, CPM2C, C200HS, or C200HX/HE/HG PC. One PC acts as the Master
and the other as the Slave to link up to 256 bits in the LR area (LR 0000 to LR
1515). In the following example, an SRM1 is linked one-to-one to another SRM1.
SRM1SRM1
Link bits
WRITE area
READ area
LR 00
LR 07
LR 08
LR 15
WRITE
READ
READ area
WRITE area
LR 00
LR 07
LR 08
LR 15
READ
WRITE
Link bits
RS-232C Port RS-232C Port