User Manual

Siemens Building Technologies VISONIK DCS Functions and System Messages VVS18 CM2U8567E / 04.1999
Landis & Staefa Division System Messages --- DCS Messages 3-33
CTR.TEST: RL/Offset=xxx RDO/RFL=yyy IT=zzz
STAP TYP 00:00:00 NAME
CTR.TEST: RL/Offset=xxx RDO/RFL=yyy
->MSGDEV (M.RDLB)
IT=zzz
A ring controller test consists of first transmitting a telegram. Then before the test
telegram is transmitted, the output of the controller is looped back to its input. This
means that the transmitted data will be again received by the controller. This looping
takes place within the SDLC chip itself.
Because of the looping, the associated modems and rings are not involved in the test: A
check is only made on the SDLC chip, DMA transfer and VISONIK DC Server software.
Such a test is automatically carried out whenever any irregularity in data traffic on the
ring is detected.
If there is agreement between the transmitted and received data (test OK), the modems
and rings are reconnected and the entire test is repeated with a BEACON telegram.
If there is a telegram discrepancy (received and transmitted telegrams unequal), the
above message is output where NAME flags the ring, xxx is the position (in bytes) of the
first corrupted telegram content, yyy is what was transmitted (and expected to be
received) and zzz is the data actually received.
(This only applies if xxx <> 0.)
Note that this message only appears under severe diagnostics ($S,TRBI=200).
Independently of this, the ring takes on a "controller faulty" status.
Sources for such a message can be the SDLC controller or the SDLC chip itself.
Replace the SDLC controller.
Explanation
Action