Technical Specifications

Mux Reset

ValVue Setup

The Mux Reset is necessary when adding or removing HART devices on a Mux network. This

function updates the Mux’s Look Up Table utilized by ValVue to map devices.

NOTE The Mux hardware re-scan is different from the re-scan

performed by ValVue from the Re-scan button. No

communication between ValVue and any device takes place on

the node until the reset is completed. This can take several

minutes, depending on MUX loading.

Use the multiplexor to request information about HART devices

1. Select the MUX Reset popup menu function to issue a reset command to a node of the

multiplexor. You are prompted for the node that is to be reset.

2. Reset the node. The multiplexor node re-scans all of the devices connected to the node

(this hardware rescan is different from the rescan done by ValVue from the Rescan

right-click menu). Depending upon the options set for the multiplexor, this can take a

while to complete. No communication can be done with devices on the selected node

until the reset is completed.

3. Select Rescan popup menu function to build a device list.

To find a device by its tag

A device list is arranged in the order found on the multiplexor’s channels. This list can be

very long if there are many connected devices.

1. Select the Find by Tag button to open a text entry dialog.

2. Enter a tag name for ValVue to search the device list for a device with a matching tag. If

found, the device is selected and the window scrolled so that its line is visible.

3. Selecting the Rescan popup menu function causes ValVue to build a new device list. All

nodes are polled. If there are a large number of devices connected to the multiplexor,

this function can take some time to complete. When the re-scan is completed, save the

device list to a file so that rescanning is not necessary every time ValVue is started.