IFM Ecomat 300 AC1355, Дополнительное руководство по устройству

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Set-up
Parameter setting of the Profibus host
7-19
Module 6: Analogue outputs of AS-i master
Contents Multiplexed analogue outputs of AS-i master 1 and 2
Length 2-word consistent I/O (if not used: length = 0)
NOTE
If analogue outputs are also triggered in module 11, the value written in module 6 is overwritten with
the data of module 11.
DP master request (2 words)
Bit:
Word
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
1
st
MM X SSSSS 0 0 0 V 0 0 CC
2
nd
Analogue value, INTEGER
Legend
MM 2 bits Master no. 1...2
X 1 bits Slave type 0 = single or A slave
1 = B slave
SSSSS 5 bits Slave no. 1…31
dec
V 1 bits Switch off the channel 1 = TRUE
→ switch off the channel,
master transmits "invalid"
CC 2 bits Channel no. 0…3
Calculation of the more significant byte (MMXSSSSS):
(slave no.) + (master no. * 64
dec
) + (32
dec
, if B slave)
Controllere response (2 words, copy of the request):
Bit:
Word
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
1
st MM X SSSSS E4 E3 E2 E1 0 0 CC
2
nd Analogue value, INTEGER
Legend
MM 2 bits Master no. 1...2
X 1 bits Slave type 0 = single or A slave
1 = B slave
SSSSS 5 bits Slave no. 1…31
dec
E1 1 bits Error no. of the response 0 = not used
E2 1 bits Error no. of the response 0 = ok
1 = protocol error (timeout)
E3 1 bits Error no. of the response 0 = ok
1 = no analogue slave found
E4 1 bits Error no. of the response 0 = ok
1 = protocol fault
CC 2 bits Channel no. 0...3