Moxa ioLogik W5340-HSPA [58/194] Heartbeat interval

ioLogik W5300 The ioAdmin Utility

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Heartbeat Interval

Tag updates are event-driven, and only change when a configured I/O event occurs; if the status remains

unchanged, tags are not updated to Active OPC server, and so the server will not know if a device remains

active or has gone down. To remedy this, a heartbeat signal can be used to verify for the AOPC server that the

ioLogik device remains active, over a live connection. If a heartbeat is configured and the connection between

the ioLogik and AOPC server is broken, the AOPC server will detect that the heartbeat has stopped and then

display in the Quality column the BAD label, to indicate the device is down.

The ioLogik W5300 heartbeat is especially useful for monitoring the connection state over cellular links, to

detect when a cellular connection experiences connectivity isseus because of low bandwidth.

For the W5300 series, we suggest using a value greater than 60 seconds.

Read/Write Privilege

An input channel can only be read when Active OPC server lists an output channel as read/write. Note that a

channel is only read if an output channel was associated in the Click&Go logic tag of that channel.

Active Tags

A tag selection table shown in the right panel of the browser window shows the details of your selection.

The I/O status of a channel can be updated to the Active OPC Server once it is changed, or updated periodically.

1. Check the On Change checkbox to force an update when there is a signal change for that channel

(On-to-Off or Off-to-On for digital channels, or any fractional change for analog channels).

2. To periodically update the status of the Active OPC Server, specify a time interval after the Update per

checkbox.