Siemens 7ML19985AB01 instruction manual Date, P35 = 7, print interval set for 7 minutes, 104

Timed Print Out

The OCM-3 can be programmed to periodically print out OCM data (P34/35). A typical print out will have the following format.

Time	hh:mm:ss
Date	dd/mm/yy
Site Number	#
Head	# units
Velocity*	# units
Temperature	# units
Flow Rate	# units
Flow Total	# units

*only for applications using velocity input

When the output is directed to a serial printer, a delay is inserted between each line to allow the printer time to print each line before another is sent. In that way, the simplest of printers may be used without need of XON/OFF or hardware handshaking; only a three wire connection is required. The printer must be at least 40 columns wide. The OCM-3 sends text in upper and lower case. The printer must support both upper and lower case or else treat lower case as if it had been sent in upper case.

The printing interval must divide evenly into the selected units of time for printing to occur at regular intervals.

e.g.	P34	= 1, printer mode set for interval in minutes
	P35	= 7, print interval set for 7 minutes

Printing starts at 7 minutes after the hour and will occur every 7 minutes thereafter until 56 minutes into the hour. The next print out would not occur until 7 minutes into the next hour.

Since the port used for communication is the same as used for normal serial communication, a software switch controls whether or not the display is sent out on the serial port. The switch is controlled by typing ’v’ to allow data transmission or ’w’ to stop it. The Milltronics printer emulation program does this automatically.

If the OCM-3 is connected to a computer programmed for printer emulation, the computer will receive the print out data and display it on the video terminal (refer to Milltronics Utilities Software).

7ML19985AB01 OCM III 104