Accessing Parameters - Omron MX2 DEVICENET OPTION BOARD User Manual

Accessing Parameters

!WARNING
4-6 Accessing Parameters
4-6-1 Accessing General (AC Drive Profile) Objects
4-6-2 Accessing Inverter parameter using Function Code Object
26
Always clear the run bits FWD and REV in your PLC program on the rising
edge of the FLT bit. Not doing so may result in the motor starting unexpect-
edly when the trip is cleared via DeviceNet or the „Stop/reset" button on the
Inverter
DeviceNet explicit
3G3AX-MX2-DRT-E Unit can be used to access any parameter from the Unit
or the MX2-A@ Inverter. Please refer to the APPENDIX E DeviceNet Explicit
Messages on page 71 for details and examples.
Refer to the DeviceNet Master Units Operation manual (Cat. No. W380) for
details on how to send the explicit messages to the 3G3AX-MX2-DRT-E.
Below are examples for usage of the OMRON CJ1W-DRM21 Master Unit with
the FINS Explicit Message Send command (2801).
Reading the value of MX2-A@ inverter input terminal [4].
Command:
28
Command Code
Destination node address
Response:
28
Command Code
The value of input terminal [4] is ON.
Writing the value of the acceleration time (F002) to 3.00 seconds (012C Hex).
The parameter F002 corresponds to address 5002 (138A Hex). Please note
the swapping of the data following CIP data type encoding.
Command:
28 01
Command Code
Destination node address
Response:
28
Command Code
messages sent from
01 0E 00
Class ID
Service Code
01 00 00 03
End Code
No. of bytes received
Source node address
10 00 65 00
Class ID Instance ID
Service Code
02
01 00 00
End Code
No. of bytes received
Source node address
Section 4-6
the Master Unit
08 00 04 03
Instance ID Attribute ID
8E 01
Data
Service code
13 8A 2C 01
Data
Attribute ID
90
Service code
to the
00 00