Operation
3-3
3.5
Controlling output channels
Output channels are displayed and controlled from the nor-
mal display state of the Model 7001 or 7002. If currently in
a menu structure, use the EXIT key to return to the normal
display state.
3.6
Turning output channels On and Off
An output channel is turned on by simply keying in the
CHANNEL assignment and pressing CLOSE. When a chan-
nel is on (closed), ~0V is seen at the output (negative true
logic). For example, to turn on output channel 36 of an I/O
card installed in slot 2, key in the following channel list and
press CLOSE:
SELECT CHANNELS 2!36
The above channel can be turned off by pressing OPEN or
OPEN ALL. The OPEN key turns off only the channels
specified in the channel list, and OPEN ALL turns off all
channels.
Note that for the Model 7002 mainframe, you can use the
light pen to turn output channels on and off.
2!1
2!2
2!3
2!4
2!5
2!6
2!7
2!8
2!9
2!10
2!11
2!12
2!13
2!14
2!15
2!16
2!17
2!18
2!19
2!20
2!21
2!22
2!23
2!24
2!25
2!26
2!27
2!28
2!29
2!30
2!31
2!32
2!33
2!34
2!35
2!36
2!37
2!38
2!39
2!40
1
2
3
4
5
6
7
8
9
10
B. SLOT 2
(CARD 2)
1!1
1!2
1!3
1!4
1!5
1!6
1!7
1!8
1!9
1!10
1!11
1!12
1!13
1!14
1!15
1!16
21!17
1!18
1!19
1!20
1!21
1!22
1!23
1!24
1!25
1!26
1!27
1!28
1!29
1!30
1!31
1!32
1!33
1!34
1!35
1!36
1!37
1!38
1!39
1!40
1
2
3
4
5
6
7
8
9
10
A. SLOT 1
(CARD 1)
EXAMPLES: 1!18 = SLOT 1, CHANNEL 18
2!36 = SLOT 2, CHANNEL 36
Figure 3-4
Model 7020 programming channel assignments
The following display is an example of a channel list that
consists of several channels:
SELECT CHANNELS 2!1, 2!3, 2!22-2!25
Notice that channel entries are separated by commas (,). A
comma is inserted by pressing ENTER or the right cursor
key. The channel range is specified by using the hyphen (-)
key to separate the range limits. Pressing CLOSE will turn
on all the channels specified in the channel list. Pressing
OPEN (or OPEN ALL) will turn off the channels.
Channel patterns can also be used in a channel list. This
allows you control specific bit patterns for logic circuits.
Example:
SELECT CHANNELS 2!1, M1
Pressing CLOSE will turn on channel 2!1 and the channels
that make up channel pattern M1. Refer to the instruction
manual for the mainframe for information on defining chan-
nel patterns.
