Quest Controls BACnet T-Stat Manual de Serviço Página 266

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266 • I/O Modules
Process Data Architecture for MODBUS/TCP
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
Serial Interface Modules with Standard Data Format
750-650/000-001, -014, -015, -016
750-651/000-001
750-653/000-001, -006
The above Serial Interface Modules with Standard Data Format have a total of
6 bytes of user data in both the Input and Output Process Image (5 bytes of se-
rial data and 1 byte of control/status). The following table illustrates the Input
and Output Process Image, which have a total of 3 words mapped into each
image. Word alignment is applied.
Input and Output Process Image
Byte Destination
Offset
High Byte Low Byte
Remark
0 D0 C/S Data byte Control/Status byte
1 D2 D1
2 D4 D3
Data bytes
Data Exchange Module
750-654, (and the variation /000-001)
The Data Exchange modules have a total of 4 bytes of user data in both the
Input and Output Process Image. The following tables illustrate the Input and
Output Process Image, which has a total of 2 words mapped into each image.
Word alignment is applied.
Input and Output Process Image
Byte Destination
Offset
High Byte Low Byte
Remark
0 D1 D0
1 D3 D2
Data bytes
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