5604 Input/Output (I/O) Module - Hardware Manual
October 19, 2007
1 Overview
The 5604 I/O module is an integrated component of a SCADAPack Series controller and not
available as a standalone unit. The following controllers support the 5604 I/O module:
SCADAPack P1A - A 520x controller board with an integrated 5604 I/O Module.
SCADAPack P4A - A 5232 controller board with an integrated 5604 I/O module.
The 5604 I/O module increases the I/O and communication capacity of a SCADAPack controller by
providing 9 single ended analog inputs, 32 digital inputs/outputs, two analog outputs (optional) and
one RS-232 serial communication port. This I/O module also has a 12V to 24V boost converter
power supply capable of generating 24V at 0.25A for up to twelve 20mA transmitters or loads.
Note that this I/O module is not available as a standalone unit.
The analog inputs can be configured for current or voltage mode with a measurement ranges of 0-
20mA or 0-10V respectively. Analog inputs can also be configured with a 20% offset in the
measuring range. In current mode, a 250current sense resistor appears across each analog input
channel. The 250resistor produces a voltage drop of 5V for a 20mA of current flow. All analog
input channels are transient protected, optically isolated from the main logic supply and share a
common return (COM) that is connected to the chassis.
This I/O module uses a 16-bit successive approximation A/D converter and provides 15 bit
resolution over the range of the analog input. Analog Input 8 is a 0 to 32.768-volt input that
measures with 10-bit resolution and can be used to monitor a power supply or battery voltage.
There is one internal analog input that is used in application programs to monitor the DC/DC
converter voltage used for VLOOP.
The 5604 I/O module can be equipped with an optional 5305 Analog Output Module that provides
two 20mA outputs through a 12-bit D/A converter. The analog outputs are transient and over
voltage protected. The output channels share a common return (GND) and with the analog input
channels.
32 universal digital inputs/outputs are provided onboard this I/O module. Each digital I/O point can
be used as an input or an output only. The inputs can be used to monitor the status of that output. In
addition to the 32 universal digital input/outputs there are 3 internal digital inputs and 2 internal
digital outputs that are used to monitor and control a DC/DC converter or VLOOP power supply as
well as to monitor digital output mismatch status.
The inputs are intended for use with dry contacts such as switches, open collector transistors and
relay contacts. Wetting current for the contacts is provided. All GND terminals on the I/O module
are connected internally to the SCADAPack chassis.
Outputs are open-collector/open drain type for use with sustained DC loads of up to 1 ampere.
Loads with high in-rush currents may exceed the 1A rating. The output circuit will tolerate these
higher peak currents. Inductive load transient suppression is built into each digital output point. It is
not necessary to add additional inductive load transient suppression unless highly inductive loads
(greater than 1H) are operated continuously at greater than 0.5Hz.
Note: This manual covers the powering, wiring and configuration of a 5604 I/O module only. It is
meant to be used with the hardware manual of the respective controller board to which the
I/O module is attached.
