HMS Networks Anybus Communicator ABC3028 User Manual page 99

Use Cases
10.2.5 Create Transaction Templates
All frames are verified using a CRC-16-IBM checksum.
My Drive is using a request/response protocol to access parameters addressed with index and
sub index.
Map up control word, speed from Modbus TCP to My Drive and status word and actual speed
from the drive to Modbus TCP.
Create Read parameter (0x01)
The Communicator reads values delivered from to the My Drive node on to the PLC.
1. Add an Empty template and select it.
2. Name the template Read parameter (0x01).
3. In the Frame editor Request area, add five frame fields with the following settings:
Request frame fields
Frame fields
Constant
Node address
Constant
Constant
Checksum
® ™
Anybus Communicator User Manual
Name
Bytes/ Type/
Length Checksum type
Function code 1 Byte
1 Byte
Node ID
Index 2 Word (two
bytes)
Sub index 1 Byte
Checksum 2 CRC
Endianess Fixed field
Yes
N/A
N/A N/A
No
Big-endian
No
N/A
N/A N/A
SCM-1202-162 1.1 en-US
97 (124)
Value
N/A
N/A
Min 0
Max 1000
Min 0
Max 255
N/A