User's Manual Part 6

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ProScale M150, M250 and all products with General Purpose LCD Digital Displays 31 of 31

MONitor

The Digital Display has the ability to monitor a position to detect position drift or

measurement variance. To activate the monitoring mode, position the readhead to the

desired location and momentarily press the

MON

key. The MON symbol will flash on the

display to indicate that the position monitor mode is active.

If the readhead moves outside the programmed tolerance the displayed reading flashes,

indicating a drift condition. When the readhead is moved back within the programmed

tolerance, the displayed reading will stop flashing.

To exit the monitor mode, momentarily press the

MON

key. The MON symbol will stop

flashing and the currently displayed position will also stop flashing.

NOTE: Position monitor mode can only be activated while in the ABS measuring mode.

If the ABS/INC key is depressed while monitoring, the position-monitoring mode is

automatically exited.

The display can be programmed to automatically enter or exit the MONitor mode based

on elapsed time or movement of the encoder.

If the programmable auto monitor is enabled (Programming parameter Pr19 set to 1), the

Digital Display will automatically enter monitor mode after either 30 or 60 seconds of no

encoder motion. If the programmable auto monitor is disabled, the ProScale will

automatically exit monitor mode if the encoder is moved beyond a programmable

distance from the monitored position. This option, in conjunction with auto monitor

activation, allows the ProScale to be kept in monitor mode without manually pressing the

monitor key.

(See Programming Parameters 19,20, 21. Factory default is OFF.)

SEND

The Digital Display provides an output port that can be used to send measurement

information to a compatible SPC device such as a printer or data acquisition unit. After

connecting the SPC device to the 10 pin connector on the display, the user may initiate

the data transmission by momentarily pressing the SEND key. This signals the SPC

device to acquire the data from the digital display.

Pressing the SEND key displays “

Snd

” on the display for 1 second to show activation of

the send function (even if no SPC device is attached to the ProScale).

The data format and connector style of the ProScale SPC output is the same as Mitutoyo

SPC. This is an industry standard that can be interfaced with most available SPC

products including multiplexers, RS232 converters and PC plug-in boards. Data from the

ProScale is sent to the SPC connector in either millimeters or decimal inches, whichever

is currently displayed on the LCD.

If no SPC device is attached to the display, the SEND key has no other function.

See

Section 6 Accessories

for interface and data acquisition products descriptions.

F1 / F2

These keys are used for special features and/or Custom programming functions.

Summary of content (5 pages)

PAGE 1
MONitor The Digital Display has the ability to monitor a position to detect position drift or measurement variance. To activate the monitoring mode, position the readhead to the desired location and momentarily press the MON key. The MON symbol will flash on the display to indicate that the position monitor mode is active. If the readhead moves outside the programmed tolerance the displayed reading flashes, indicating a drift condition.
PAGE 2
Programming Several functions of the digital display are user programmable. The following instructions describe what features are available and how to change the system’s factory defaults to customize the display for your application. The keys pictured have multiple functions. Timing, which is how long a key is depressed, and the combination of the keys pressed is important. This manual uses the term ‘”momentarily” to describe a key press of typically less than 1 second.
PAGE 3
Programming Parameters are listed below. Values in [ ] are the available range of values that can be programmed for that entry. Factory defaults are shown in bold. Pr0 – Encoder Direction [0,1] Change value to reverse the direction of measurement readings. [0, 1] Pr1 – Enable/Disable Segment Offset 0 = For ABSOLUTE scales shorter than 430mm, (16.9in). ALL Incremental scales 1 = For All ABSOLUTE scales longer than 430mm, (16.9in).
PAGE 4
[0 to 60] Default = 15. Pr8 – Automatic Power Off Sets the amount of time in ‘minutes without activity’ before the display automatically turns off. 0 = Disables Auto Off. Encoder motion or ON/OFF key “wake-ups” the display and resets the timer. Pr9 – Auxiliary Keys Enable/Disable [0..7] 0 = ABS/INC, MON and HOLD Disabled 1 = ABS/INC Key Enabled 2 = MON Key Enabled 4 = HOLD Key Enabled 7 = All Keys Enabled To enable keys, add up combination of key values. A value of 2 enables only the MON key.
PAGE 5
[0, 1]. Pr15 – Output Polarity Used to configure the signal output. N/O or N/C in relation to circuit ground. 0 = N/O, the output is Normally Open (not conducting to ground). 1 = N/C, the output is Normally Closed (conducting to ground). Pr16 – Lower Limit [-999.999 to 999.999in] or [-9999.99 to 9999.99mm] Sets the lower limit alarm value. Default = 0.000IN. Active only when parameter Pr14 = 1. Note: Default is set in Inches Pr17 – Upper Limit [-999.999 to 999.999in] or [-9999.99 to 9999.