Maple Systems OIT Family - Manual (Page 36)

3. In the Register Data group box, enter each preset ingredient:
• In the PLC Register drop down list box, select the PLC register location.
• In the Address and Sub-Element scroll boxes, select the PLC register address.
• In the Format drop down list box, select the data format.
• In the Value scroll box, select the default value.
• In the Description text box, enter a description of this preset ingredient (up to 25 characters).
4. In the Gate Data group box, configure the gate coil:
• In the Gate Coil group box, select the Enable check box if you want to use the gate coil.
• In the Coil Address and Sub-Element scroll boxes, select the PLC register address.
• In the Trigger group box, select the option button that corresponds to the gate coil’s “on” state.
5. Choose the Done button to return to the Screen Editor.
6. In the Screen Editor, enter the text to be displayed.
7. In the Screen Editor, insert any necessary PLC Register Monitors. For more
information on embedding PLC Register Monitors, refer to CHAPTER 4: PLC
Register Monitors.
8. Configure any screen features (blinking, etc.) you want to use. For more information on
configuring the available screen features, refer to the Screen Features section in this chapter.
Alarm Screens
Alarm screens notify the OIT operator of alarm conditions using a message and an
audible alert. The message text and the duration of the audible alert can be configured for
each alarm screen. When the PLC requests an alarm screen:
• the prior screen is immediately replaced by the alarm
• the internal and external buzzers sound
(external buzzer connection available
OIT3250, OIT4450, OIT5400 only)
• and the alarm LED blinks
(OIT3250, OIT4450, OIT5400 only).
Once an alarm screen is displayed, all other non-alarm
screen requests are ignored until the OIT operator
presses the ALARM ACKNOWLEDGE key or the
PLC cancels the alarm using the Clear Alarm or Clear
Alarm Stack status coil. For more information on using
the status coils to clear an alarm, refer to the Status
Coils section in CHAPTER 2: Operational Overview.
When an alarm is acknowledged or cleared:
• the prior screen is redisplayed
• the internal and external buzzers are silenced
NOTE:The OIT operator can silence the buzzer while continuing to view the alarm by pressing
the CLEAR key.
• the alarm LED is cleared
• and the Acknowledge Alarm status coil is set (if the OIT operator acknowledged the alarm)
Stored Screens 36
1010-0099, Rev. 07
Audible Alert Types
• 1 second
• 5 second
• 30 second
• 60 second
• Three beeps, once per sec.
• Five beeps, twice per sec.
• One beep per sec.
• Two beeps per sec.
• Continuous beep