MODULE #7 - PROGRAM SERIAL COMMUNICATIONS
Several programmable parameters must be programmed before serial communication can occur.
BAUD RATE
Select one of the baud rates from the list to match the baud rate of the printer, computer, controller, etc.
“bAud” < > “300” | - | 300 baud |
“600” | - | 600 baud |
“1200” | - | 1200 baud |
“2400” | - | 2400 baud |
UNIT ADDRESS NUMBER
To allow multiple units to communicate on the 20 mA loop, different address
numbers must be assigned to each unit. If only one unit is on the loop, an
address of “0” may be given, eliminating the need for the address command. | |
“ | “AddrES” < > “0” to “99” |
| |
PRINT REQUEST FUNCTION
A selection of print operations can be programmed. A print operation occurs when a print request is activated via
If the totalizer is overflowed, an asterisk (*) will precede the digits that are printed (ex. *000127 positive overflow,
“Print” < > “0” - input signal
“1” - input signal, peak, valley and offset “2” - input signal, alarm 1 and alarm 2
“3” - input signal, alarm 1, alarm 2, hysteresis 1, hysteresis 2, peak, valley, and offset
“4” - totalizer
“5” - input signal and totalizer
“6” - input signal, totalizer, peak, valley, and offset “7” - totalizer, alarm 1, and alarm 2
“8” - input signal, totalizer, alarm 1, and alarm 2 “9” - input signal, totalizer, alarm 1, alarm 2,
hysteresis 1, hysteresis 2, peak, valley, and offset
FULL OR ABBREVIATED TRANSMISSION
When transmitting data, the IMY can be programmed to suppress the address number, mnemonics and some spaces, if desired, by selecting “NO”. A selection of “NO” results in faster transmission. This feature may be helpful when interfacing with a computer. When interfacing to a printer, a “yES” response is usually desirable.
“FULL” < > “yES” or “NO”
An example of full and abbreviated transmission is shown below:
2 INP