Pass Through Communications; Protocol Automatic Switching; User C Capability; Product Electronics - Emerson FloBoss 103 Instruction Manual

FloBoss 103/104 Instruction Manual
1.3.7
1.3.8
1.3.9

1.4 Product Electronics

1.4.1
1-16

Pass Through Communications

Pass Through Communications allow you to configure an FB100 unit to
send Pass Through messages, when using a FB100. By using any of the
FB100 communications ports, Pass Through Mode allows data to be
received by one unit and then passed through to other devices connected
on any other communications port. For example, the host communicates
via a radio (when an external radio is used with the EIA-232 module) on
the FB100's Comm 2 port. You can then connect other FB100s via EIA-
485 (RS-485) on the Comm 1 port of the first FB100, and then all the
FB100s can use the one radio to communicate to the host.
:
Notes
▪ If you configure Comm 2 as a dial-up modem, you must configure it
as a receiving port. If you configure Comm 2 as an RS-232 port, it
has no such restrictions.
▪ The Device Group (located on the General tab of the ROC >
Information screen) of the FB100 receiving the data must match the
Device Group of the FB100(s) to which the data is passed. If the
Device Group does not match, the data is not forwarded.

Protocol Automatic Switching

The FB100 has the capability to communicate with ROC or Modbus
protocol. With the standard version of FloBoss firmware, Modbus Slave
is standard. If you require Modbus Host functionality, contact your local
sales representative.

User C Capability

The FB100 supports programs written in User C. This capability allows
you to write and subsequently load special features into the FB100 to
enhance the functionality. User C programs typically provide the ability
to interface with alternate metering equipment, perform alternate
calculation methods, or communicate with alternate protocols. Consult
your local sales representative for User C applications.
This section describes the FB100 electronics. For communication
modules, refer to Chapter 4. Refer to Chapter 5 for information on the
I/O termination points, Chapter 6 for the Dual-Variable Sensor (DVS),
or Chapter 7 for the Pulse Interface module.

Termination Board Overview

Components of the termination board (see Figure 1-4) support the
functionality of the FloBoss 100-Series and include:
▪ Local operator interface (LOI) EIA-232 (RS-232) terminations
General Information Revised August-2017