The poll command contains a maximum of 8 characters depending on the options used.
EQPWSP<unit ID>SPNCR| Position | Name | Description | Value/Range |
|---|---|---|---|
| 1 | EQ | Enquiry | 0x05 |
| 2–3 | PW | Device type identifier | Fixed string = "PW" or "pw" |
| 4 | SP | Space | 0x20 |
| 5 | <unit ID> |
Unit identifier If the ID is not defined, can be replaced by character 1 |
0–9, a–z, A–Z |
| 6 | SP | Space | 0x20 |
| 7 | N | Message number | 0–9 |
| 8 | CR | Carriage return | 0x0D |
PWD polling examples
The device has no unit identifier set. A
default message is polled:
EQPWCRThe device has no unit identifier set. A
message number 1 is polled. This is a special case, the unit identifier 1 is used in the
polling
command:
EQPWSP1SP1CRThe device has unit identifier set = 2. A
message set as default is polled:
EQPWSP2CRThe device has unit identifier set = 3. A
message number 2 is
polled:
EQPWSP3SP2CR