Table of Contents
Advertisement
Model 2790 SourceMeter
Relay closure count
The Model 2790 keeps an internal count of the number of times each module relay has
been closed. The total number of relay closures are stored in EEPROM on the card. This
count will help you determine if and when any relays require replacement (see module
contact life specifications).
Relay closures are counted only when a relay cycles from open to closed state. If you send
multiple close commands to the same channel without sending an open command, only
the first closure will be counted.
Relay closure count can only be read via remote operation. The commands are summa-
rized in
Table 2-3
Relay closure count commands
ROUTe:CLOSe:COUNt? <clist>
ROUTe:CLOSe:COUNt:INTerval <NRf> Set count update interval in minutes
ROUTe:CLOSe:COUNt:INTerval?
Channel list parameter:
<clist> = (@SCH)
where: S
Examples:
Note: Relay count interval set to 15 minutes at the factory. SYSTem:PREset and *RST have no effect on the
klqb
®
Switch System Reference Manual
Table
2-3. Details follow the table.
Commands
= Mainframe slot number (1 or 2)
CH = Switching module channel number (must be 2 digits)
(@101) = Slot 1, Channel 1
(@101, 203) = Slot 1, Channel 1 and Slot 2, Channel 3
(@101:110) = Slot 1, Channels 1 through 10
set interval.
The relay closure count can be reset to zero. For details, see Section 18 of this
manual.
Description
Query close count for specified
channels.
(10 to 1440).
Query relay count update interval.
2-29
Default
Note
Advertisement
Table of Contents
