ION 7500 / ION 7600 User’s Guide

Digital Output Boards for ION 7300 Series Meters

 

 

Digital Output Boards for ION 7300 Series Meters

You can extend the capability on the ION 7300, ION 7330 and ION 7350 with an optional relay extension board (REB). The relay extension board provides four slots where you can plug Grayhill digital output hardware modules. There are nine Grayhill hardware modules of varying functionality available.

You can use ION Digital Output, Pulser, or Calibration Pulser modules to control the functions of the Grayhill relay. Set the module’s Port setup register to the digital output port (D1 to D4) that the Grayhill relay is connected to. Refer to “Configuring ION Modules for Digital and Analog I/O” on page 230. For wiring instructions, see your ION 7300 Series meter’s Installation and Basic Setup Instructions for more information.

Expansion Boards for the ION 7700

The ION 7700 expansion boards provide multiple analog and digital inputs, analog outputs, digital inputs, and/or digital outputs. Up to two expansion boards can be connected to the ION 7700 meter, though the second board requires its own power supply. (The first expansion board connected to the meter is powered by the meter itself.) Each expansion board offers 15 slots where you can plug Grayhill I/O hardware modules. Some restrictions to the use of analog I/O Grayhill hardware modules are listed below.

Grayhill analog hardware module restrictions—power supplies

Power requirements and hardware restrictions limit the number and placement of Grayhill analog hardware modules on I/O expansion boards. To install the maximum number of Grayhill analog I/O hardware modules, you must have two power supplies (one for each expansion board). These power supplies are purchased separately.

If you only need to install a maximum of six Grayhill analog hardware modules, you can power Expansion Board A directly from the ION 7700. Note that if you have a separate power supply for Expansion Board A, then you must remove the associated jumper from the board. Failure to remove the jumper voids the

ION 7700’s warranty. See the ION 7700 Installation and Basic Setup Instructions for jumper location. Expansion Board B always requires a separate power supply, no matter what the configuration.

Grayhill analog hardware module restrictions—direction of installation

The direction of all modules in slots 0 through 7 and slots 8 through 14 must be the same. Slots 0 through 7 support digital input, digital output and analog output Grayhill hardware modules only (not analog input modules). Slots 8 through 14 support digital input, digital output, analog input and Grayhill analog output hardware modules. Slot 15 is not supported.

As noted above, only slots 8 through 14 support analog input hardware modules, so you can have a maximum of 7 per board. Analog output hardware modules can populate both slot groups on the expansion board, so you can install a maximum of 15 analog output hardware modules per board. The following table summarizes the restrictions on analog I/O devices.

Digital and Analog I/O Technical Note

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Multi-Tech Systems 7500, 7600 manual Digital Output Boards for ION 7300 Series Meters, Expansion Boards for the ION
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7500, 7600 specifications

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