The SERCOS I/II Conformance test consists of both a physical and a logical test, briefly described below.
As described under Testing Requirements, detailed test descriptions for both SERCOS interface master and slave devices are available for free download in PDF format.
Physical Test
1. Measurement of the optical power (continuous light signal)
The optical transmission power is measured using the continuous light optical test mode. The transmission power must be within the limits specified in the SERCOS standard (see IEC 61491, Chapter 5.3.1).
2. Measurement of the optical signal (curve shape)
The zero bit stream is measured at high and low attenuation. The curve shape must be within the specified optical signal envelope for the zero bit stream as specified in the SERCOS standard (see IEC 61491 Chapter 5.4.1/5.4.2).
See Test Equipment for details on the equipment used in the physical testing.
Logical Test
The logical test is performed using the SERCOS
Conformizer. Tests for logical operation are performed as specified in the following table:
|
Slave
Device |
Master
Device |
| Drive identification |
X |
|
| Service channel |
X |
X |
| Procedure command handling |
X |
|
| Telegram types |
X |
|
| Error handling |
X |
X |
| Time slot measurement |
X |
X |
| Phase switch |
X |
X |
Feedback acquisition capture point
and Command value valid time |
|
X |
| Compliance class(es) |
X |
X |
|
|
