Honeywell 621-0012 is an ASCII communication module that is part of the ISSC PLC product line. It is used to communicate with other devices using the RS-232 or RS-422 serial protocols. It is no longer manufactured by Honeywell, but it is still available for purchase from some third-party vendors.
The 621-0012 has a number of features, including:
- Supports ASCII communication protocol
- RS-232 and RS-422 serial ports
- 20mA (active) current loop
- DIP switch configuration
The 621-0012 is a discontinued product, but it is still used in some legacy applications. It is important to note that support for this product is limited, and it may be difficult to find replacement parts or technical support.
Here are some specifications of the 621-0012:
- Communication protocol: ASCII
- Serial ports: RS-232, RS-422
- Current loop: 20mA (active)
- Configuration: DIP switch
- Dimensions: 3.9″ x 2.2″ x 1.0″
- Weight: 8 oz
PLC : AB， ABB， GE , Schneider
DCS : ABB, MOORE, Foxboro, Westinghouse, YOKOGAWA
ESD : Triconex, HIMA, BENTLY, ICS
Excitation cards : ABB, GE Marke
Regarding new and used product descriptions:
New product
We guarantee that all new products undergo 100% testing before shipment to ensure normal use.
The new product will be in its original packaging and come with all original accessories.
Second hand products
Some second-hand products may have obvious scratches or other usage marks on the surface.
Second hand products will undergo strict testing before shipment to ensure proper functionality.
Inventory will change periodically, please contact us before purchasing
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