Flexible Format - Omron MX2 DEVICENET OPTION BOARD User Manual

Flexible I/O Mapping
Flexible I/O Settings
Note 1
The Flexible Format implements I/O data exchange that supports direct map-
ping of MX2-A@ Inverter Modbus registers in the I/O area. The Flexible For-
mat provides
1. User configurable allocation of the IO Data to any Modbus register
2. Flexibility to set the size of the IO data to only transfer the necessary data,
minimising fieldbus traffic.
This offers fieldbus- and profile-independent control of the MX2-A@ Inverter.
The exchanged registers are configured by setting Inverter registers P160 –
P179 to the appropriate Inverter Modbus addresses.
Note The MX2-A@ Inverter places some restrictions on the Modbus register selec-
tion.
• For a Modbus Register to be mapped for output data exchange, it must be
both run-mode editable and writable.
• MX2-A@ Inverter parameters may not be accessible depending on the
Inverter's mode (High frequency mode, Permanent magnet mode, Torque
mode, etc).
Tip
Refer to section B-4-2 of the MX2 User's manual
Tip Refer to section 3-2-3 of the MX2 User's manual
Tip
The MX2-A@ Inverter parameter B031 (Sofware Lock Mode) determines the
various protection levels. Be sure to set the appropriate value B031 = 10 to be
able to set parameter during run-mode.
Tip
When using Flexible Format, the Inverter is controlled via Modbus registers.
Set A001/A201 = 3 and A002/A202 = 3 to make use of the Modbus control
registers for typical Flexible Format use.
Table F-1 Flexible Format I/O Mapping
Word
Offset
+0 Modbus register set by P160
+1 Modbus register set by P161
+2 Modbus register set by P162
+3 Modbus register set by P163
+4 Modbus register set by P164
+5 Modbus register set by P165
+6 Modbus register set by P166
+7 Modbus register set by P167
+8 Modbus register set by P168
+9 Modbus register set by P169
Please consider the following notes when setting the parameters P160 to
P179.
The parameters P160 to P179 determine the size of the input and output data.
The IO size is determined by the highest non-zero parameter. For example for
output: if P164 is the highest non-zero parameter, the output data size will be
Content
Output Area
APPENDIX F

Flexible Format

Input Area
Modbus register set by P170
Modbus register set by P171
Modbus register set by P172
Modbus register set by P173
Modbus register set by P174
Modbus register set by P175
Modbus register set by P176
Modbus register set by P177
Modbus register set by P178
Modbus register set by P179
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