Using the IntelliLogger™
37
Channels E through H share a single 4 way DIP switch. Each of the 4 switches
is associated with one of the channels. The On/Off state of each of the individual
switches sets that channel for Current or Vdc/thermocouple use.
Figure 3-11; Channels E to H Switch Settings
The schematic representation of channels E through H is slightly different than
the schematic for Channels A to D and is shown in Figure 3-12.
Figure 3-12; Simplified Input Schematic for Channels E, F, G and D nd H
ILIM-7 Channel Configuration Via HyperWare-II
When an ILIM-7 channel is configured as a particular type of input via the module
configuration switches, the configuration will be automatically detected by the
connected IntelliLogger upon power-up. This channel type information is then
communicated to the PC running HyperWare-II when a Hardware Query
command
1
is done from the Programming window and icons representing the
currently configured channel type will be available for use during the
development of a Program Net. Software input range configuration and
utilization of the ILIM-7's channels in a Program Net is covered in Appendix D
(ILIM-7 Module Icon Reference) in the HyperWare-II manual.
Input Over-current Protection Fuses
Each of the eight input channels is protected by a 100mA fuse as shown in
Figure 3-9 (physical location on module). This fuse will protect the module
channel from over-current surges received from malfunctioning or improperly
connected sensors and 4-20mA transmitters.
In the event that a channel on a module stops responding with proper values, it
may be an indication that this protective fuse has blown. The fuse can be
removed from the circuit and checked for continuity with an ohm-meter and/or
replaced with a Littelfuse P/N: 273.100 fuse available from Logic Beach
Incorporated or many electronic distributors.
1
Refer to Programming Chapter in the HyperWare-II manual for further details on Query command.
