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CM2U8567E / 04.1999 VISONIK DCS Functions and System Messages VVS18 Siemens Building Technologies
3-42 System Messages --- DCS Messages Landis & Staefa Division
DMA@:WRITE/READ dismatch xx yy zz aa
STAP TYP 00:00:00 NAME
DMA@:WRITE/READ dismatch xx yy zz aa
->MSGDEV (M.RDMA)
If there are any irregularities in data traffic with an SDLC ring controller, its DMA register
is checked by writing the value xx to the register and then reading value yy from the
register. If xx and yy are not the same, the DMA chip is faulty.
Replace the SDLC ring controller even if the message only appears intermittently.
xx = hardware address
yy = value written in register
zz = value read from register
aa = re-read value.
Explanation
Action
Meaning: