readMultipleRegisters: START

exception 'Exception' with message 'socket_connect() failed.
Reason: ()No route to host' in /var/www/html/Modbus/phpmodbus/Phpmodbus/ModbusMaster.php:102 Stack trace: #0 /var/www/html/Modbus/phpmodbus/Phpmodbus/ModbusMaster.php(430): ModbusMaster->connect() #1 /var/www/html/Modbus/phpmodbus/examples/DengtianRelayReadRelayStatus.php(13): ModbusMaster->readMultipleRegisters(0, 1, 1) #2 {main}