Delta Electronics DeviceNet Slave Communication Module IFD9502, Руководство по применению

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DeviceNet Slave Communication Module IFD9502
DVP-PLC Application Manual 23
Byte position Data written into custom equipment Data read from custom equipment
5 Attribute ID Attribute ID
6 Service Data LSB N/A
7 Service Data MSB N/A
z
Format of messages responded:
Byte position Data written into custom equipment Data read from custom equipment
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 N/A Response data LSB
3 N/A Response data MSB
3. Class 0x9E Custom_Parameter
z
Class attributes
Attribute ID Access rule Name Data type
1 Get Revision UINT
z
Instance 1: Parameter Instance 1 through N
Parameter attribute
Attribute ID Access rule Name Data type
1 Get/Set Parameter Value -
Common Services
Implemented for
Service Code
Class Instance
Service Name
0x0E Yes Yes Get_Attribute_Single
0x10 No Yes Set_Attribute_Single
z
Explanation
„ When you need to use DeviceNet Config software to read the parameters in the custom
equipment, you have to first make sure that the equipment supports the Modbus function
code, 0x03 (read), 0x06 (write) and so on.
„ You have to acquire the Modbus address of the parameter before reading the parameter.
„ How to read: Plus 0x0001 in Modbus address as Instance value and 0x0001 as Attribute
value.
„
Assume you read the Modbus address of the custom equipment as 0x011E, use DeviceNet
Config software and read Instance = 0x0001 and Attribute = 0x01.
4. I/O data mapping (Default)
z
Custom equipment → DeviceNet master
Node address of custom
equipment
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
H’2101 Relevant to the equipment connected
H’2102 Relevant to the equipment connected