TTL relay switches with Lynxterm, but not my program

Lynxmotion Electronics & Software
1

I have a ttl relay switch that works great with changing it with the register page on Lynxterm (attached to my ssc-32). When I switch from state ‘0’ to ‘1’, it switches perfectly. When I code it from the initial terminal page, such as
‘R64=0’ then return it doesn’t switch.
When I type ‘R64’ then return, it does show me that R64=0, but it won’t switch until I go to the register page and click ‘read’ or ‘write’, then it works.
Thanks in advance

2

Sounds right, values don’t switch immediately, only when you WRITE.

Alan KM6VV

3

How do you write the register changes from a simple terminal page?
Thanks

4

It would help to see you code. Not sure what processor or the like.
I know I have used this command in the past. The most common mistake I have seen when using basic is passing a binary value for either the servo number or the value instead of the ASCII text.

That is often you will see something like: serout cSSC_OUT, cSSC_BAUD, "R", servonum,"=", servoval, 13]
instead of: cSSC_Out, cSSC_BAUD, "R", dec servonum, "=", dec servoval, 13]

Kurt

5

Thanks for your quick reply. I don’t have a problem communicating with the servo controller. I can change the register values with my program. I can move servos with the program. The problem is that it does not write the register values to switch the TTL relay. When I change the register, such as R64=0, when I send ‘R64’, it gives me the value ‘0’. A value ‘0’ should switch on the relay, but it doesn’t. When I run Lynxterm, the terminal page shows R64=0, but still no switch. When I get to the ‘Register’ screen and click either ‘read’ or ‘write’, then the button switches on. What do these buttons on the ‘register’ page send that the terminal page doesn’t. I understand that there is a limit to writing to the eeprom and the controller is putting up somewhat of a road block to avoid overwriting to the register itself (I have no problem moving servos), but is it possible to get around this? I am running Visual Basic 2010.
Thanks so much for all your replies and help!!

6

Sorry, I think I may be missing something here:

I believe that R64 sets the initial pulse width for Servo 0. I believe that this value is only used when the SSC-32 is first powered up or reset. If you wish to turn the pulse off for servo zero you can either do:
#0P0

or I believe:
#0L

Kurt

7

Hey thanks!!!
#0H and #0L turn it on and off.
Fixed!!!
You are awesome!
Thanks!!!
Geoff