var vxiTransceiver = require('vxi11').vxiTransceiver
...
vxiTransceiver('172.30.56.65', 'gpib0,10', '*IDN?', function(result) {
  console.log('result: »' + result + '«');
});

var vxiTransceiver = require('vxi11').vxiTransceiver
...
var options = {
  host: '172.30.56.65',
  device: 'gpib0,10',
  command: '*IDN?',
  readTimeout: 3000,     // default:  2000ms
  ioTimeout: 6000,       // default: 10000ms
  lockTimeout: 6000,     // default: 10000ms
  lockDevice: true,      // default: true
  termChar: '\n', // string or number; default: 0 (no termination char)
  logger: { log: console.log, error: console.error }, // default: no logging
  encoding: 'utf8'       // 'binary' (Buffer), 'base64'; default: 'utf8'
}
...
vxiTransceiver(options, function(result) {
  console.log('*** result: »' + result + '«');
},function(error) {
  console.log('*** error: »' + error + '«');
});