C200H α Fault diagnosis of series analog module

① The error light is on, check the N + 9 channel, and judge the error according to the error code;

② The error light and run light are not on, because the special IO unit exceeds the allowable range and IO bus error.

Fault diagnosis of CJ / CS Series analog module

① Judgment indicator light;

a. Run light and ERC light are on, Erh light is not on, check bit 00-07 and bit 14 of N + 9;

b. Run light and ERC light are on, Erh light is not on, adj light is flashing, check 12, 13, 15 of N + 9;

c. Run light is not on, ERC light is on, Erh light is not on, check the 11 bits of N + 9;

d. Run light and Erh light are on, ERC light is not on, check IO bus error, CPU unit monitoring error and CPU unit WDT error;

e. Run light and ERC light are not on, Erh light is on, check whether there are repeated unit number and special IO unit setting errors.

② Run light is on, other lights are not on, indicating that the module is normal. If there is no input and output, check the module settings.

Editor in charge: LQ

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