621-0004
Low Stock
Systems Diagnostic Module
The 621-0004 has been superseded by the 621-0021RC Enhanced Diagnostic Module.
The 621-0004 System Diagnostic Module (SDM) provided an additional measure of system monitoring. The SOM operates essentially as an external system monitor. It acts as a watchdog timer, monitoring various control and data lines.
The SDM, upon detecting a system malfunction, de-energizes an onboard relay that can in turn remove power from the system's output modules. This provides an effective method of halting the controlled machine or process.
- System: Honeywell DCS
- Part Number: 621-0004
- Alternates: 6210004
- Category: IPC 620-25, IPC 621-Special Function
- Availability: No Immediate Stock - Request Availability
- Price: Contact for Quote
- Shipping: Same Day Shipping Options Available
- Price: Contact for Quote
- Warranty: Minimum one-year replacement policy
Western Process Computers, Inc. provides certified, tested, like-new hardware ranging from single printed circuit boards on exchange up through complete assemblies to worldwide users of Honeywell DCS systems (TDC 2000 & TDC 3000). We specialize only in Honeywell DCS hardware such as the 6210004. This is our focus, our specialty – this is all that we do. Request a quote today for competitive pricing and lead times.