Rockwell Automation 20-COMM-E PowerFlex EtherNet/IP Adapter User Manual
Page 183
Using Explicit Messaging
6-57
20-COMM-E EtherNet/IP Adapter User Manual
Publication 20COMM-UM010G-EN-P
MicroLogix 1100/1400 Controller Example Ladder Logic Program to Write a Single
Parameter Using Read/Write Parameter Service
A Write Parameter message is used to write to a single parameter. This
write message example writes a value to parameter 140 - [Accel Time 1] in
a PowerFlex 7-Class drive.
Important: Parameter Object Class code 0x0F is not supported in
PowerFlex 750-Series drives. To do a single parameter write,
follow the SLC 500 (Generic Attribute Service) single write
example on
.
Figure 6.70 Example Ladder Logic to Write a Single Parameter
Important: If the explicit message single write must be written
continuously, use DPI Parameter Object Class code 0x93 and
attribute A (10 decimal; see
). This writes to RAM—
not NVS (EEPROM) memory. This example single write
message using Class code F writes to NVS. Over time,
continuous writes will exceed the EEPROM life cycle and
cause the drive to malfunction.