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Add Modbus errorcode

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This commit is contained in:
Theo Arends 2021-01-26 17:34:48 +01:00
parent 7249552582
commit 05650384dd
1 changed files with 11 additions and 8 deletions
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19
lib/lib_basic/TasmotaModbus-1.2.0/src/TasmotaModbus.cpp
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@ -93,15 +93,18 @@ uint8_t TasmotaModbus::ReceiveBuffer(uint8_t *buffer, uint8_t register_count)
buffer[mb_len++] = data;
if (3 == mb_len) {
if (buffer[1] & 0x80) { // 01 84 02 f2 f1
if (0 == buffer[2]) {
return 3; // 3 = Illegal Data Value,
}
return buffer[2]; // 1 = Illegal Function,
// 2 = Illegal Data Address,
// 3 = Illegal Data Value,
// 4 = Slave Error
// 5 = Acknowledge but not finished (no error)
// 6 = Slave Busy
// 8 = Memory Parity error
// 10 = Gateway Path Unavailable
// 11 = Gateway Target device failed to respond
// 2 = Illegal Data Address,
// 3 = Illegal Data Value,
// 4 = Slave Error
// 5 = Acknowledge but not finished (no error)
// 6 = Slave Busy
// 8 = Memory Parity error
// 10 = Gateway Path Unavailable
// 11 = Gateway Target device failed to respond
}
}
}