1 reading parameter data from the inverter, 2 writing parameter data to the inverter, Reading parameter data from the inverter – Lenze E84AYCPM User Manual
Page 54: Writing parameter data to the inverter, Reading parameter data from the inverter ( 54), Writing parameter data to the inverter ( 54), 9parameter data transfer
Lenze · E84AYCPM communication module (PROFIBUS®) · Communication Manual · DMS 5.0 EN · 11/2012 · TD17
54
9
Parameter data transfer
9.2
DRIVECOM parameter data channel (DP-V0)
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9.2.2.1
Reading parameter data from the inverter
General procedure:
1. Define the user data area of the inverter, i.e. define the location of the DP user data in the
controller (observe manufacturer-specific information).
2. Enter the address of the required parameter in the "Index" and "Subindex" fields (DP output
data).
3. Request in the service byte = read request.
The handshake bit in the service byte must be changed (DP output data).
4. Check whether the handshake bit in the service byte is the same for the DP input data and the
DP output data.
• If the handshake bit is the same, the response has been received.
• It is useful to implement a time monitoring tool.
5. Check whether the status bit in the service byte is set:
• Status bit is not set: The "Data/Error" field contains the required
• Status bit is set: The read request has not been executed correctly. The "Data/Error" field
contains the
.
9.2.2.2
Writing parameter data to the inverter
General procedure:
1. Define the user data area of the inverter, i.e. define the location of the DP user data in the
controller (observe manufacturer-specific information).
2. Enter the address of the required parameter in the "Index" and "Subindex" fields (DP output
data).
3. Enter the parameter value in the "Data/Error" field.
4. Request in the service byte = write request.
The handshake bit in the service byte must be changed (DP output data).
5. Check whether the handshake bit in the service byte is the same for the DP input data and the
DP output data.
• If the handshake bit is the same, the response has been received.
• It is useful to implement a time monitoring tool.
6. Check whether the status bit in the service byte is set:
• Status bit is not set: The write request has been executed correctly.
• Status bit is set: The write request has not been executed correctly. The "Data/Error" field
contains the
.