I am new to using the referenced device, but do have experience with serial programming. I am attempting to use Tera-term terminal emulator, with settings to COM 74 (the virtual port created upon installation and power up of the switch) Per the table in the ZRS-232 Quick guide for ProXR Enhanced, I set baud rate to 57.6 k on both Tera-term side, and in Device Manager (Windows 7).
When sending commands with these settings, I can see the Tx LED on the ZUSB board lite up, but never the Rx LED.
An example of the commands I am sending are:
254 49 1 // direct commands to relay bank 1
254 8 // turn on relay 1
These two (and all other) commands fail to toggle relays, and I do not see any return serial traffic.
Can you please offer some suggestions as to what I am doing wrong.
Good information, Using the TeraTerm command line (terminal emulator) was a problem as it works sending terminal input as ASCII string data (just as you said). So I switched to using RealTerm, which is an application that allows for opening/configuring a port, then sending numbers. The ports open and close as they should.
Now my problem is how to package up the command so that it is sent to the serial port as a series of space delimited numeric values in C.
If you have any ideas on how, please share. I will also look on the C forums to get an idea.