Advantech Zlinx ZP9D-115RM-LR User Manual page 40

PD (Minimum Polling Delay)
Command
<Networking & Security> The PD
command is used to set/read Polling
Delay (Base, MD=3) or
Polling Timeout (Remote, MD=4).
Polling Delay (Base) is the time
between polling cycles. The Polling
Base will start the polling cycle after
sending the first poll. After the polling
cycle has completed, the timer is
restarted.
Polling Timeout (Remote) is the amount of time the remote unit will hold data from the
serial port before discarding it. Data entered within the PD time of the poll is transmitted
and not discarded.
PE (Polling End Address)
Command
<Networking & Security> PE
command is used to set/read the
module's Polling End Address – the
last address polled when Polling
Mode is enabled.
Polling Operations: The 'Polling
Base' (MD = 3) cycles through a
sequential range of addresses,
polling each 'Polling Remote' (MD =
4). The base then waits for a response & proceeds to the next 'Polling Remote'. Each
'Polling Remote' responds by sending data from the DI buffer following the RB & RO
parameters. When there is no eligible data to send, the 'Polling Remote' will not respond.
The 'Polling Base' will move to the next address in the polling sequence after a short delay.
ZP9D-115RM-LR Radio Modem
AT Command: ATPD
Binary Command: 0x47 (71 decimal)
Parameter Range: 0 - 0xFFFF_ (Base: [x 1ms],
Remote: [x 10ms])
Default Parameter Value: 0
Number of Bytes Returned: 2
Minimum Firmware Version Required: 2.x20
Related Commands: MD (RF Mode), PB
(Polling Begin Address), PE (Polling End
Address)
AT Command: ATPE
Binary Command: 0x46 (70 decimal)
Parameter Range: 0 - 0xFFFF
Default Parameter Value: 0
Number of Bytes Returned: 2
Minimum Firmware Version Required: 2.x20
Related Commands: MD (RF Mode), PB
(Polling Begin Address), PD (Minimum Polling
Delay)
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