TC electronic SDN BHD D22 - Manual (Page 29)

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FREQUENTLY ASKED QUESTIONS
Question: What parameters can be set using serial remote
control of the D22?
Answer: Preset change, Delay time and Bypass using an
RS485/422/232 controller.
Question: What serial protocol is used?
Answer: The serial protocol is 9600, N, 8, 1.
This means 9.6 kbaud, no parity, 8 bit, 1 stop.
Question: What is the command structure for the remote
protocol?
Answer: #AA,CMD,VALUE
AA is Unit Address number as set on the Utility page.
CMD is command:
PRE for preset change,
BYP for Bypass,
DEL for delay.
VALUE is (RAM) Preset number, 0 for Not Bypass, 1 for
Bypass or amount of Delay.
is carriage return, the same as Enter or hex 0D.
Examples:
#05,PRE,10 =Recall RAM preset no. 10 on D22 address 5.
#03,BYP,1 =Bypass D22 address 3.
All commands and numbers are shown as ASCII.
Question: What is the data length of the delay time?
Answer: The delay is always a decimal number related to the
given delay unit of the D22. It is not posible to change delay unit
via the RS-485, so you must set this manually before you send
the command lines.
Example 1:
The delay unit is ms and you would like to set the delay to 10.5 ms:
#05,DEL,10.5
Example 2:
The delay unit is frames and you would like to set the delay to
10.5 frames: #05,DEL,10.5
As you can see there is no difference between example 1 and 2.
Example 3: The delay unit is ms and you would like to set the
delay to 10.5 frames:
You have to calculate the delay in ms yourself based on the fps
setting and then send a command-line.
Question: What ASCII characters should be sent for Recall of
RAM preset no. 10 on D22 address 5?
Answer: #05,PRE,10 means these values (hex) actually
transmitted 23 30 35 2C 50 52 45 2C 31 30 0D