621-9938R – Honeywell

Serial I/O Module. from Honeywell

Product Specifications

Model/Part Number: 621-9938R

Industrial Usage: Programmable Logic Controller (PLC)

Warranty: One year

Part Type: Serial I/O Module.

Brand/Manufacturer: ABB

Delivery: 1 week

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In-Stock: 1

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Part Details:

621-9938R Serial I/O Modulde.

Model No : 621-9938R. 

Brand : Honeywell.

The Serial I/O Module (SIOM), models 621-9938R controls the Serial I/O card file and interfaces with the model 621-9939 SLM in the processor card file. Serial I/O redundancy requires the model 621-9938R redundant Serial I/O Module (SIOM) in each serial I/O card file. This version of the SIOM has dual communication ports so that it can attach to the redundant serial I/O lines.The optional model 621-9928R Serial Link Selector (SLS) is available to switch a communication link so that it is always connected to the active processor. This serial link would normally be used for the Loader/Terminal.

Usage / Application : PLC

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