Installed-equipment notes for CM574-RS
Keep the entire CM574-RS designation with the maintenance request. CM574-RS belongs to a specific equipment design; the visible family name alone is insufficient for a replacement decision.
Product data and selection limits
| Technical item | Verified value / selection note |
|---|---|
| Complete designation | CM574-RS |
| Product family | CM574-RS |
| Component role | dual-serial AC500 communication module |
| Interfaces | Two serial RS-232/RS-485 |
| Role | Freely configurable communications |
| Order code | 1SAP170400R0201 |
| Terminal blocks | TA532 supplied with module |
| Final configuration | Confirm exact nameplate, hardware revision and order options before purchase |
For CM574-RS, the table identifies useful checks but does not replace the marked unit and its complete technical documentation. Confirm option and revision details before purchase.
What the replacement must match
Before substituting CM574-RS, compare CPU/firmware, protocol configuration, pinout, electrical standard and network termination. Check the exact code and nameplate against the purchase specification.
Do not call another CM574-RS designation a direct replacement for CM574-RS solely because its enclosure looks similar. Ratings and fitted options require separate confirmation.
Equipment role
The installed role of CM574-RS is to connect the AC500 controller to approved serial devices. Write down the connected circuit, controller or process tag and the equipment being served.
A failure around CM574-RS may also arise from the supply, sensor, wiring, communications or mechanical accessory. Capture the symptoms before removing parts.
Commissioning handover
After fitting CM574-RS, check both ports against the configured peer devices. Record the test method, readings, settings and any open deviation.
Release CM574-RS for service only after the relevant protection, communication or measurement response has been witnessed and the asset record is updated.
Field fault isolation
For an unexplained CM574-RS fault, note the present indicators and alarm history. Measure only at safe accessible test points according to the plant procedure.
When CM574-RS interacts with a controller or protective system, verify the upstream command and downstream response independently before deciding which component failed.
Related family designations
These CM574-RS designations are included with CM574-RS to support model searches and enquiries. Individual specifications can differ, and they are not automatically interchangeable.
No other unassigned CM574-RS code is grouped with CM574-RS here.
Ordering record
Retain the CM574-RS nameplate image, purchase code and configuration note with the quotation. Include the commissioning results when the unit is installed.
If a future CM574-RS replacement is required, compare its complete code with the installed record again rather than relying on this page alone.
