I-7530A-MR Modbus RTU to CAN Converter User’s Manual (Version 1.07, 06/2016) ------------- 614.10 General Error code for all commandIf the Error response function on the I-7530A-MR_MR module is set to be“Yes”(that means enable) via the I-7530A-MR Utility when configuration, the I-7530A-MR will automatically send the error code to the RS-232/485/422 deviceor the host PC through the RS-232/485/422 media when the I-7530A-MRproduces an error message during the operation mode. The meanings of theseerror codes are given below:Table 4-8: Error code tableErrorcode Description Possible causes & solutions1 Invalid headerThe header of the RS-232/485/422command string is not“t”,”T”,”e”,”E”,”S”,”P0”, ”P1”,”P2” nor “RA”.2 Invalid lengthThe numbers of data of the CAN messagedoes not match the data length of the CANmessage. For example:Error: t001512345Right: t001501020304053 Invalid checksumThe checksum of the RS-232/485/422command string does not match with thechecksum calculated by the I-7530A-MR. Forexample:Error: t0012112209Right: t00121122FD4 Buffer overrunThe transmission buffer verrun is happened,users should retransmit the message laterwhen this module is normal.5 TimeoutThe ASCII command strings are sentincomplete.For example:Error: T0018Right: T0018
