Modbus

Name

The name of this item

Enabled

If checked, Edge ACM will poll this device when running

Device Address

The Modbus unit address of the device. Valid values 0-65535.

Modbus TCP

Sets the Modbus message encoding to TCP enabled.

Register Set

Defines the specific register set to use when polling the device. Eight register sets are currently included with the application:

• AutoPILOT Pro

• Daniels RTU/ASCII

• Enron

• Flow Automation

• Modbus RTU/ASCII

• OMNI

• Custom

Custom Modbus Register Set

The Modbus Register Set object associated with this device if “Custom” is selected for the Register Set above.

Addressing Type

Defines the End Device addressing type for special configurations of Modbus. There are four options to choose from:

• None

• 2byte

• SCADAPack

• Lufkin

Null Terminated Strings

Determines if the string registers will be null terminated when written

Tag Groups

The Tag Group(s) that are associated with this device. Edge ACM will only poll this device for the tags in the groups listed here

Connection Settings

The object that contains the connection settings Edge ACM will use to connect to the End Device

Folder

The parent folder for this item

Internal Tags Publishing Group

An integer ID (0-255) that can be used to map the included Comm Stat tags in this device to a publish schedule.

Include Active Items tag

Publishes the ActiveItems tag which is a count of the total number of tags on this device.

Include Barometer tag

Publishes the Barometer indicator.

Note: The communications barometer represents the marginal success rate of communications. For each poll cycle that does not receive a response for one or more poll messages, the barometer will increase by two (2), with a maximum value of 100. For each poll cycle that does receive a valid response for all poll messages, the barometer to decreases by 1, with the lowest value being 0. These barometer changes cause failures in communications to show up quickly as the barometer rises. However, good communications must be maintained longer and more steadily for the barometer to fall back to 0.

Include Comm Status tag

Publishes the CommStatus tag which represents the status of the communication link to the device.

• The value will be 1 if a communication link to the device can be established – even if the device does not respond to polls.

• The value will be 0 if a communication link cannot be established to the device.

Include Demand tag

Publishes the Demand tag which, when written to, will trigger an out of schedule poll of all tags on the device.

Include Incomplete Poll tag

Publishes the IncompletePoll tag which is set to false at the beginning of each poll. The value changes from false to true if the last poll attempt was incomplete.

Include Last Poll Attempt Time tag

Publishes the LastPollAttemptTime tag which is updated with the date time stamp of the last poll attempt in UTC (without time zone bias).

Include Last Poll Failure Code tag

Publishes the LastPollFailureCode tag which is updated with an integer value indicating the result of the last poll.

• 0 = Success

• 1 = No poll initiated

• 2 = Error opening connection

• 3 = Error during modem initialization

• 4 = Connection failed

• 5 = Line is busy

• 6 = No answer

• 7 = Connection was dropped

Include Last Poll Length tag

Publishes the LastPollLength tag which is updated with the length (in bytes) of the last poll message sent to a device.

Include Last Poll Success Time

Publishes the LastPollSuccessTime tag which is updated with the date time stamp of the last successful poll in UTC (without time zone bias).

Include Seconds Since Complete

Publishes the SecondsSinceComplete tag which is updated with the seconds since the last complete poll.