User`s manual

7-37

(5) Error cord EC(H), EC(L)

The JW300 (control module) processes commands received from a host computer and if an error

occurs, it will send one of the following error codes (error responses).

Note: If any of the following conditions are met, the JW300 (control module) neither processes the

command nor sends a response.

1. If the slave station number in the command does not match the JW300 station number.

2. If it fails to find a "*", "?," or "CR" in the command.

To recover from this condition, use the time out function on the host computer.

Contents

Format error

Designated address is not TMR/CNT setting value

Number of transfer bytes is not correct

PLC (JW300) does not stop by HLT (stop PLC processing)

Writing to PLC (JW300) memory is not executed correctly

Memory capacity, file capacity is full

Parity error

Framing error

Overrun error

Sum check error

Prohibit program memory write (memory protection switch “ON”)

Other CPU is accessing memory

Not match write mode

Not program area

Tried to write in ROM

System memory error

Password is not yet registered

The secret function is not released

Password error (tried to register other than alphabetical and numeric

letters)

The secret is not yet released.

Error code

(EC(H), EC(L))