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H Timing Chart
1. 2. 3. 4.
00000 (Write Parameter Input Bit)
03000 (Data Write Flag)
03005 (Data Agree Flag)
Word n to n+2 (Send Data)
Word m to m+2 (Receive Data)
00101 (Sending Enter Command Flag)
00102 (Sending “00” Function Flag)
00103 (Data Write Completed Flag)
00100 (Sending Written Data Flag)
Send Data (Write) Enter Command
“00” Function
Send Data (Write) Enter Command “00” Function
H Operation
1. Set the register number of the parameter and the data to be written in DM 0000 and DM 0001 re-
spectively. When the Write Parameter Input Bit is turned ON, the Data Write Flag will be turned ON
and parameter writing processing will be executed.
2. If the data is properly written, the written parameter register number and the function code will be
returned from the Inverter. When the sent register number and the function code agree with the re-
ceived data contents, the Data Agree Flag will be turned ON to send the enter command.
3. If the enter command is normally received, the register number and function code that agree with
the enter command will be returned from the Inverter. When the sent register number and function
code agree with the received contents, the Data Agree Flag will be turned ON to send the function
code “00” (both the register number and function code are 0000).
4. In the same manner, if the function code “00” is normally received, the Data Agree Flag will be turned
ON and the Data Write Completed Flag will be turned ON. When the Data Write Completed Flag
turns ON, the Data Write Flag will turn OFF and the program will stop.
Note 1. If the enter command remains set, data will be repeatedly written to EEPROM. Therefore, set
the function code to “00” (both the register number and function code are 0000), which per-
forms no processing, to disable the enter command.
Note 2. If the sent data is faulty, word m bit 7 will be turned ON, which will turn ON the Faulty Data Flag
and the program will be stopped until the Faulty Data Reset Input Bit (00002) is turned ON.
Communications Programs (SYSMAC C200HX/HG/HE PCs) Chapter 7