Error: GatewayTargetDeviceFailedToRespond

[sexbee]

receive data from TCP client :

{ Error: GatewayTargetDeviceFailedToRespond
at Object.exports.error (/Users/mac/Desktop/RLLP-PCL5new/node_modules/modbus-pdu/lib/Exception.js:24:13)
at Timeout._onTimeout (/Users/mac/Desktop/RLLP-PCL5new/node_modules/modbus-stream/lib/transport/transport.js:92:33)
at ontimeout (timers.js:498:11)
at tryOnTimeout (timers.js:323:5)
at Timer.listOnTimeout (timers.js:290:5) code: 11 }

I cant find cause?

[sexbee]

events.js:183
throw er; // Unhandled 'error' event
^

Error: read ECONNRESET
at TCP.onread (net.js:622:25)

[viatick]

error : Error: GatewayTargetDeviceFailedToRespond
result : undefined

when reading at address 0?