Function keys as momentary switches, Configuring a momentary function key – Maple Systems STEPware-100 User Manual

Page 53

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2. In the Assignment group box, select the appropriate option button.
3. In the Action drop down list box, select Push On/Off.

4. In the Key ON Message group box, choose the Edit button to display the Function

Key ASCII String Editor dialog box.

5. Enter your ASCII string in the Char. row of the table.

To enter printable ASCII characters, just press the appropriate key on the PC’s keyboard.

To enter non-printable ASCII characters, either double click in the Char. row or choose the

Non-Printable button to display the Non-Printable Characters dialog box. Select a

non-printable character by double clicking on one of the available non-printable characters. If

you do not see the non-printable character you wanted, pressing the Extended button will dis-

play a dialog box that allows you to enter ASCII character codes from 128 to 255.

6. Choose the Done button to return to the Function Key Editor dialog box.

7. If you want to program a Key OFF Message, repeat steps 4 through 6 using the Edit

button in the Key OFF Message group box.

8. Select the other options as described in the General Features section.

Function Keys as Momentary Switches

When a momentary function key is pressed, the Key ON Message is sent to the host

controller. When released, the Key OFF Message is sent. If you want the Key ON

Message sent continuously until the function key is released, you need to enable the

Repeat feature. The Repeat feature includes the following options:

Interval — allows you to set the time interval, 10 msec to 30 sec, between transmissions of

the Key ON Message.

Max. Times — allows you to set the maximum number of times, 0 to 1,000, that the Key

ON Message is resent. Once this limit is reached, the function key is no longer recognized

until it is released and pressed again. A value of 0 allows the Key ON Message to be sent

continuously as long as the function key is pressed.

NOTE:The Repeat feature is not supported in Block and Network modes since both have

limited buffers which would be quickly overridden.

NOTE: If local echo is enabled in Interactive mode, the Key ON Message is sent to the OIT’s

display. If you are using the Repeat feature, the OIT’s display can fill quickly. To keep

the Key ON and Key OFF Messages from displaying, you need to select the Send

Message To Host Only option when configuring each function key.

Configuring a Momentary Function Key

1. In STEPware-100, press F5 to open the Function Key Editor dialog box.

2. In the Assignment group box, select the appropriate option button.
3. In the Action drop down list box, select Momentary.

4. In the Key ON Message group box, choose the Edit button to display the Function

Key ASCII String Editor dialog box.

5. Enter your ASCII string in the Char. row of the table.

To enter printable ASCII characters, just press the appropriate key on the PC’s keyboard.

To enter non-printable ASCII characters, either double click in the Char. row or choose the

Non-Printable button to display the Non-Printable Characters dialog box. Select a

non-printable character by double clicking on one of the available non-printable characters. If

you do not see the non-printable character you wanted, pressing the Extended button will dis-

play a dialog box that allows you to enter ASCII character codes from 128 to 255.

50

STEP1 Protocol Operation Manual

1010-0096, Rev. 04

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