s7-200 read v memory

[shizetao]

i use DB1,X100 to read v100

return
buffer.js:336
throw new ERR_INVALID_OPT_VALUE.RangeError('size', size);
^
RangeError [ERR_INVALID_OPT_VALUE]: The value "NaN" is invalid for option "size"
at Function.alloc (buffer.js:345:3)
at processS7Packet (node_modules/nodes7/nodeS7.js:1626:33)
at NodeS7.readResponse (/node_modules/nodes7/nodeS7.js:1372:17)
at NodeS7.onResponse (/node_modules/nodes7/nodeS7.js:1237:9)
at Socket. (/node_modules/nodes7/nodeS7.js:407:20)
at Socket.emit (events.js:210:5)
at addChunk (_stream_readable.js:309:12)
at readableAddChunk (_stream_readable.js:290:11)
at Socket.Readable.push (_stream_readable.js:224:10)
at TCP.onStreamRead (internal/stream_base_commons.js:182:23) {
code: 'ERR_INVALID_OPT_VALUE'
}

where am i wrong

[shizetao]

i set wrong ip ...... my bad