Parameterizing and diagnosis functions for all bus couplers
PCD0
26/766 E2
(HB_PCD0 26 766_E2.DOC)
SAIA-Burgess Controls Ltd.
Page 149
10.7
Function 3 Determine bus node process data width
Function 3 supplies the process data width of the bus node.
Diagnose Output
Diagnose Input
Byte 3
Byte 2
Byte 1
Byte 0
Byte 3
Byte 2
Byte 1
Byte 0
EC/BC
INPUT
OUTPUT
Diagnose Input
Byte 3, OUTPUT
Number of output bytes
Byte 2, Input
Number of input bytes