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OMRON Serial Communications Board CQM1H-SCB41
OMRON Serial Communications Board CQM1H-SCB41
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Product name:Serial Communications Board.
Model:CQM1H-SCB41.
Applicable CPU Units:CQM1H-CPU51/61.
Serial Communica-tions ports>Port 1:RS-232C: 19.2 kbps max., 15 m max.
Serial Communica-tions ports>Port 2:RS-422A/485: 19.2 kbps max., 500 m max.
Dimensions:25 × 110 × 107 mm (W × H × D).
Weight:90 g max.

OMRON

The Serial Communications Board is an Inner Board equipped with 2 ports that can be used to connect host computers,
Programmable Terminals, external serial devices, or Programming Devices other than a Programming Console.

• Unlike the CPU Unit’s built-in ports, the Serial Communications Board supports the protocol macro function which can improve communications between the CQM1H and external serial devic-es.

• The Serial Communications Board has 2 ports: an RS-232C port and an RS-422A/485 port. The RS-422A/485 port supports
1:N connections (protocol macro or NT Link in 1:N mode) with-out an adapter.

Communications Modes

The following 6 communications modes can be set independently for the two Serial Communications Board ports.
• Host Link: Communications with a host computer, Programming Device, or Programmable Terminal
• No-protocol: No-protocol communications (TXD and RXD) with standard external devices
• Protocol macro: Communications according to the external device’s communications specifications
• 1:1 Data Link: Data link with a CQM1H, CQM1, or other C-series PLC
• NT Link in 1:N mode: One-to-one or one-to-N communications with Programmable Terminals
• NT Link in 1:1 mod: One-to-one communications with Programmable Terminal

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