Signed integer support missing?

[stevedh]

Unless I am missing something, the documentation mentions supporting reading signed integers; but there's no ReadInt16/ReadInt32 method in the client.

[simonvetter]

Hi Stephen,

wouldn't simply using a cast work in this case? This is how I usually do it:

• read a 16-bit, signed integer:

var  reg uint16

err, reg = client.ReadRegister(0x1000, modbus.HOLDING_REGISTER)

if err != nil { ... }

fmt.Printf("unsigned value: %v, signed value: %v\n", reg, int16(reg))

• write a 16-bit, signed register:

var setpoint int16

setpoint = -100

err = client.WriteRegister(0x1000, uint16(setpoint))

Hope this helps,

-Simon

[simonvetter]

Closing this for inactivity. Feel free to reopen if needed.