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Diffstat (limited to '')
| -rw-r--r-- | src/modbuslog.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/modbuslog.c b/src/modbuslog.c index 8a9da3a..51895ac 100644 --- a/src/modbuslog.c +++ b/src/modbuslog.c @@ -214,17 +214,20 @@ int main(int argc, char *argv[]) { ctx = modbus_new_rtu(modbus_device_address, modbus_baud_rate, modbus_parity[0], modbus_data_bits, modbus_stop_bits); - modbus_set_slave(ctx, slaveid); - modbus_set_debug(ctx, DEBUG); - if (ctx == NULL) { syslog(LOG_ERR, "Unable to create libmodbus object"); } + modbus_set_slave(ctx, slaveid); + modbus_set_debug(ctx, DEBUG); + if (modbus_connect(ctx) == -1) { syslog(LOG_ERR, "libmodbus: Connection failed: [%s]", modbus_strerror(errno)); modbus_free(ctx); + // if connection fails, skip rest of loop + syslog(LOG_ERR, "Skipping read from [%i,%i]", slaveid, startaddress); + break; } int retry = 0; |