
C-22
EtherNet/IP Communications Module
C.8 MDI Parameter Object
Class Code
Instances
The number of instances depends on the number of parameters in
the device. The total number of parameters can be read in
Instance 0, Attribute 0.
Class Attributes
Hexadecimal Decimal
0x93 147
Instances (Dec.) Single-Drive Mode Multi-Drive Mode
0 - 16383 Instances 0 - 16383 in the drive Instances 0 - 16383 in the drive
16384 - 17407 Instances 0 - 1023 in the module Instances 0 - 1023 in the module
17408 - 18431 Instances 0 - 1023 in the module Instances 0 - 1023 in Drive 1
18432 - 19455 Instances 0 - 1023 in the slave Instances 0 - 1023 in Drive 2
19456 - 20479 Not supported Instances 0 - 1023 in Drive 3
20480 - 21503 Not supported Instances 0 - 1023 in Drive 4
21504 - 22527 Not supported Instances 0 - 1023 in the module
Attribute
ID
Access
Rule Name Data Type Description
0 Get Number of
Instances
WORD Number of parameters in the device
1 Set Write
Protect
Password
WORD 0 = Password disabled
n = Password
2 Set NVS
Command
Write
BYTE 0 = No operation
1 = Store values in active memory to NVS
2 = Load values in NVS to active memory
3 = Load default values to active memory
3 Get NVS
Parameter
Value
Checksum
WORD Checksum of all parameter values in a user
set in NVS
4 Get NVS Link
Value
Checksum
WORD Checksum of parameter links in a user set
in NVS
5GetFirst
Accessible
Parameter
WORD First parameter available if parameters are
protected by passwords. A “0” indicates all
parameters are protected.
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