Delta Electronics RTU-DNET - Manual (Page 12)

DeviceNet Remote I/O Communication Module RTU-DNET
DVP-PLC Application Manual 10
Byte position Data written into special module Data read from special module
1 R/R[0]+Service Code[0x10] R/R[0]+Service Code[0x0E]
2 Class ID [0x9C] Class ID [0x9C]
3 Instance ID Instance ID
4 Attribute ID Attribute ID
5 Low byte of Service Data N/A
6 High byte of Service Data N/A
7 N/A N/A
„ Format of response messages
Byte position Data written into special module Data read from special module
0 Frag[0]+XID+MAC ID Frag[0]+XID+MAC ID
1 R/R[1]+Service Code[0x10] R/R[1]+Service Code[0x0E]
2 Low byte of response data
3 High byte of response data
2. Definitions of DeviceNet Objects for RTU-DNET
„ Class 0x9A – RTU-DNET setup parameter object
Class attribute
Attribute ID Access rule Name Data type
1 Get Revision UINT
Instance 1
Attribute
ID
Access
rule
Name Range Default Explanation
1 Get
Length of
input I/O data
N/A N/A
The sum of the length of the status
word of RTU-DNET and the input data
of the module connected to it. (Unit:
byte)
2 Get
Length of
output I/O
data
N/A N/A
The sum of the length of the control
word of RTU-DNET and the output
data of the module connected to it.
(Unit: byte)
3 Get
Number of
digital input
points (X)
0 ~ 128 N/A
The number will be regarded as 8
when it is less than 8 and as 16 when it
is bigger than 8 but less than 16. (Unit:
bit)
4 Get
Number of
digital output
points (Y)
0 ~ 128 N/A
The number will be regarded as 8
when it is less than 8 and as 16 when it
is bigger than 8 but less than 16. (Unit:
bit)
5 Get
Number of
special
modules
0 ~ 8 N/A
The number of special modules
connected to RTU-DNET.
6 Get
Length of
analog input
N/A N/A
The length of input data of the special
module connected to RTU-DNET.
(Unit: word)
7 Get
Length of
analog output
N/A N/A
The length of output data of the special
module connected to RTU-DNET.
(Unit: word)