User Manual of EM730 Series Inverter mapping coefficient. If read the output frequency of the inverter, the source address is F10.00=50.0Hz, and the destination address is F00.07=50.00Hz, the mapping coefficient needs to be set to 0.10. The data returned to PLC by inverter: destination address data * mapping coefficient = 5000 * 0.1 = 500, consistent with the number of decimal places of source address F10.00. When writing the output frequency of the inverter, PLC sends data 500, and the inverter receives data as: 500/0.1 = 5000, consistent with the destination address F00.07 decimal places. The principle of mapping coefficient setting:
Regardless of whether a parameter is read or written, the mapping coefficient is set according to reading the parameter. (4) Examples of mapping functions 4.1 Mapping an External Address to an Internal Address with the Same Function When replacing the communication function of EM303B inverter, it is necessary to write the acceleration and deceleration time. The EM303B acceleration and deceleration time function codes are F00.09 and F00.10, and the EM730 acceleration and deceleration time function codes are F00.14 and F00.15.
The original PLC program communication to F00.09 and F00.10 address write deceleration time, in the case of PLC program does not change, EM730 and PLC can be achieved through the mapping function of normal communication. Map F00.09 and F00.10 to F00.14 and F00.15 respectively. Mapping parameters are set as follows:
F45.00=1 (mapping function valid) F45.01=9 (source address 1) F45.02=14 (Destination address 1) F45.04=10 (source address 2) F45.05=15 (Destination address 2) After the above parameters are set, the EM730 inverter converts internally to F00.14 when receiving the PLC write address F00.09, and to F00.15 when receiving the PLC write address F00.10, realizing normal acceleration and deceleration time modification. If the address mapping is incorrectly set, the acceleration and deceleration time of EM730 inverter cannot be changed, and the function codes F00.09 and F00.10 of EM730 will be incorrectly changed.
338 Source address 1 F00.09（0009H/9D） Destination address 1 F00.14（000EH/14D） Accelera -tion time Source address 2 F00.10（000AH/10D） Destination address 2 F00.15（000FH/15D） Decelera -tion time