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CHAPTER 6: Administrator Functions
6.4 Channel Configuration
Administrators can use the Channel Configuration Menu, shown in Figures 6-5
and 6-6, to edit or initialize a CIM. You can change the device name, individual
scan rate, device type, and group IDs associated with each computer or device.
When you save Channel Configuration changes, the Summit system will update
each affected CIM as necessary.
Use the arrow keys, [Tab], [Shift] + [Tab], [PgUp] (page up), [PgDn] (page
down), [Home], and [End] to move within this menu and its submenus. Press
[Enter] to edit a highlighted field; it will turn green. When you finish editing a
field, either press [Enter] followed by [S] to save the changes, or press [Esc] to
abort them.
This menu displays one channel’s information in each row. If the Summit system
detects a powered device on that channel, it will display the text in that row in
green; otherwise, it will display it in black. Here’s what the fields and columns in
the “left end” of this menu (see Figure 6-5) mean:
• ChID: The channel’s channel-ID number.
• Name: The name of the device attached to that channel. Device names are
case-sensitive and may be up to twelve alphanumeric characters long. As shown
with channel #1 in Figure 6-5 and elsewhere, you can leave a device name
blank if you want to, although we don’t recommend this.
• Scn: Displays the device’s individual scan rate (the length of time that the
system pauses while scanning that channel for any user with Scan Mode set to
“Individual” rather than “Global”—see Section 5.3). Using leading zeroes if
necessary, type in a two-digit number of seconds from 01 to 24, or use the up-
and down-arrow keys to increment and decrement the current value by 1
respectively. The default setting is 03.
• Device: Displays the type of device connected to the channel. Use the up- and
down-arrow keys to toggle the device type between “CPU” (computer), “S242”
(2 x 42 Base Unit), “S442” (4 x 42 Base Unit), “S832” (8 x 32 Base Unit), and
“S1664” (16 x 64 Base Unit).
If you select a non-CPU device type, the system assumes that you’ve
connected a cascaded subsidiary Summit Base Unit to that channel as
described in Section 4.3. The system creates a default device name for that
Base Unit, such as “Summit 16 x 64” for a 16 x 64 Base Unit. We strongly
recommend that you change the name to something that will be meaningful
to you and your coworkers, because this device name will be programmed into
the CIM attached to the Base Unit, and so will “follow” the Base Unit if you
have to relocate it in the system.
