Parameter Process Data Object Modules - Omron 3G3AX-MX2-PRT-E User Manual

Parameter Process Data Object Modules

The Parameter Process Data Object (PPO) modules implement the cyclic
data exchange mapping for the PROFIdrive device profile. Five modules are
supported (PPO1 - PPO5) allowing you to select the number of exchanged
registers and PKW messaging support. All modules provide two default out-
put words: STW (Control word) and HSW (Frequency Reference), provide
control over the Inverter. All modules additionally provide two default input
words: ZSW (Status Word) and HIW (Output Frequency) provide feedback on
the Inverter status. STW and ZSW are explained in more detail in appendix B-
2. HSW and HIW are explained in appendix B-3. The exchanged Modbus reg-
isters are configured by setting Inverter registers P160 - P179 to the appropri-
ate Inverter Modbus addresses. If P160, P161, P170 or P171 are set to 0,
STW, HSW, ZSW and HIW are used.
Note Set P182 = 0 for the Option Board to support the PPO modules
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 a run-mode edit register that provides write-access. Double-word Modbus
registers must be mapped in sequence: high-word following low-word. It is not
allowed to map the same register more than once in the output area.
Tip Refer to section B-4-2 of the MX2-A@ Inverter user's manual for a list of the
Inverter registers that provide write access.
Tip
Refer to section 3-2-3 of the MX2-A@ Inverter user's manual for an explana-
tion on run-mode edit registers. Also note that the run-mode edit requirement
can be disabled with b031.
APPENDIX B
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