Read Multiple Coils
t, err = mbo:rmc(adr, fc, nc, [ms])
t, err = modbus.rmc(cpo, adr, fc, nc, [ms])
Read multiple coils (Modbus function 01)
| Parameter | Type | Description |
|---|---|---|
mbo |
object table | Modbus Object |
cpo |
object | COM Port Object |
adr |
integer | Slave address |
fc |
integer | First coil to read |
nc |
integer | Number of coils to read |
ms |
integer | Receive timeout |
| Returns | Type | Description |
|---|---|---|
t |
table | Boolean values (one for each coil) |
err |
string | Modbus error (if applicable) |
See also: modbus.rdi
This is a bit access function.