Apollo IMY instruction manual Baud Rate, Unit Address Number, Print Request Function

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 E1-CON (TBA #4) or optional E2-CON (TBA #8), or a “P” command is sent from a terminal via the serial communications option. If the option to which a particular print code applies is not installed, then that parameter will not be printed.

If the totalizer is overflowed, an asterisk (*) will precede the digits that are printed (ex. *000127 positive overflow, -*00127 negative overflow). If the temperature exceeds the range of the unit, the print-out will show “OLOLOL”. If the sensor opens, the print-out will show “ULULUL”. For the negative direction or shorted, the print-out will show “SHOrt”.

“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 -125.7F < CR > < LF > Full transmission -125.7 < CR > < LF > Abbreviated transmission

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