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plcpeople / nodeS7

Node.JS library for communication to Siemens S7 PLCs
MIT License
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s7-200 read v memory #90

Closed shizetao closed 4 years ago

shizetao commented 4 years ago

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 commented 4 years ago

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