<pre>writeMultipleRegister: START
Connected
Packet: f6e8000000130010300000060c000afc1807d0000000004040
Send
Wait data ... 
Wait data ... 
Wait data ... 
Wait data ... 
Wait data ... 
Wait data ... 
Wait data ... 
Wait data ... 
Wait data ... 
Wait data ... 
Wait data ... 
Wait data ... 
Wait data ... 
Wait data ... 
Wait data ... 
</pre>Exception: Watchdog time expired [ 5 sec]!!! Connection to 192.192.15.51 is not established. in /var/www/html/laravel_test/app/Tool/phpmodbus/Phpmodbus/ModbusMaster.php:160
Stack trace:
#0 /var/www/html/laravel_test/app/Tool/phpmodbus/Phpmodbus/ModbusMaster.php(652): ModbusMaster->rec()
#1 /var/www/html/laravel_test/app/Tool/phpmodbus/examples/example_fc16.php(14): ModbusMaster->writeMultipleRegister(0, 12288, Array, Array)
#2 {main}