20
13-
10
14
Operation
Commands for IQT-F116-R4M-V1 only
set device address SD
This command changes the DeviceNo in multidrop mode from <OldDeviceNo> to
<NewDeviceNo>. The default device adress is "01".
get device address GA
This command reads the DeviceNo of a station. For reading the DeviceNo of a
station only one single station must be connected to the RS485 interface.
Otherwise a collision on the RS485 line would occur when several stations can
reply to the command. The default device address is "01".
5.4
Read/write commands
single read words SR
One attempt is made to read <WordNum> 32-bit words from the address
<WordAddr>.
enhanced buffered read words ER
An attempt is made until successful, to read <WordNum> 32-bit words from the
address <WordAddr>. Only changing data is transferred via the interface. When a
data carrier leaves the read range, the status
“
5
”
is output.
single write words SW
One attempt is made to write <WordNum> 32-bit words from the address
<WordAddr>.
Command:
SD <OldDeviceNo> <NewDeviceNo> <CHCK> <ETX>
Response:
<Status> <DeviceNo> <CHCK> <ETX>
Command:
GA <DeviceNo> <CHCK> <ETX>
Response:
<Status> <DeviceNo> <CHCK> <ETX>
Command:
SR <DeviceNo> <WordAddr> <WordNum> <CHCK> <ETX>
Response:
<Status> <DeviceNo> <Data> <CHCK> <ETX>
Command:
ER <DeviceNo> <WordAddr> <WordNum> <CHCK> <ETX>
Response:
<Status> <DeviceNo> <Data> <CHCK> <ETX>
Note!
Data collision
Only use the previous command if a single address is on the network.
Executing this command on more than one address will result in data collision.
Command:
SW <DeviceNo> <WordAddr> <WordNum> <Data> <CHCK> <ETX>
Response:
<Status> <DeviceNo> <CHCK> <ETX>
