2.1. Appliances used:
- HIQuad (Mono) with F8627X. Setting on DirectMode with a maximum
delay time of 1.4 s (S1/5 on ON).
Operating system version used V4.18.
10 byte user data is transmitted.
- Satelline-3ASd/250 Error Correction
switched on RX preferred for receivers,
TX preferred for transmitters Different frequencies for both lines
- Application of a special cable It is important
to pay attention to a suitable shielding and transposition.
Configuration see on the right.
- IP-Link:
Configuration with telnet login „root“ Basis-IP is 192.168.1
Adjustment of routes required (according to manual).
Settings are required to be stored and respectively confirmed with “apply“.
Serial speed to Satelline has been left at 19200 baud.
- By means of COMEth, the connected PC
monitors the number of connections interrupted.
- The IP-Link does not support Auto Cross Over,
this is why infrastructure components between
HIQuad and IP-Link are to used. The hub is used
for the connection of the PC for monitoring as well.
2.2. Special features
Satelline-3AS is available in different versions. This refers to:
- Frequency range
- possible transmission power (and distance)
According to Welotec, the communication behaviour of all devices is identical. Therefore, from the point of view of HIMA, the result can be applied to the rest of Satelline products as well.
3. Test result
The test described was carried out in-house (without any worth-mentioning transmission distances) for two days without any interruption. Theoretically, the 16 km should flow in the transmission delay with a delay of less than 1ms and should therefore be irrelevant.
HIMA does not make any statement about the additional number of interferences on the transmission distance. The application is expected to cope with the resulting delay of the reaction from the safety-related point of view.
The communication distance must not be shared with any further participant.
In a further test, HIQuad controls have been replaced by HIMatrix, which offers much better possibilities for analysis. In the following you will find the results of two days operating time:
- Settings: Profile "Slow and Noisy", RcvTMO = 2000, ResebdTMO = 1000
- Telegrams transferred: 600.000
- Average response time: 440 ms
- Maximum response time:1253 ms
- Number of repetitions: 14
- Number of prematures: 18
Therefore, this transmission distance could be used for HIMatrix as well as for HIQuad.
