98
Chapter 7
535-PROF User's Manual
Applications
Figure 7.12
Combinations of Closed Digital Inputs
for Each Setpoint (based on BCD
logic)
X=closed contact
0=open contact
NOTE:
To take advantage of multiple
setpoints, make sure that the
SP
NUMBER
parameter in the
SPECIAL
menu is set to a value greater than 1.
output to define what is being transmitted: the process variable, setpoint,
ramping setpoint or output.
5. Set parameters
LOW RANGE:X
and
HIGH RANGE:X
for the first retrans-
mission output, to define the range of the transmitted signal in engineering
units. This can be useful in matching the input range of the receiving device.
6. For any other retransmission output, continue to scroll through the this menu
and set the
TYPE:X, LOW RANGE:X
and
HIGH RANGE:X
for the second
retransmission output.
I. DIGITAL INPUTS
Digital inputs can be activated in three ways: A switch (signal type)—the rec-
ommended type, a relay, or and open collector transistor
Digital inputs are only functional when that option is installed (via hardware).
The controller detects the hardware type, and supplies the appropriate software
menus (see the section on parameters in Chatper 5). There are 14 contact types
for the up to 5 digital inputs. See
Section A
for digital input options when using
Profile Control.
Hardware Configuration
•
This optional features is only available if ordered originally from the factory,
Product #535xxxxxxDx00. The (up to ) five digital inputs share a common
ground.
Software Configuration
1. Go to the
CONFIG.
menu.
2. Set parameters
CONTACT:1
through
CONTACT:5
(only those available will
shown) by assigning the desired function to each output. Choices are:
•
SETPT 1-8
(For
CONTACT:1
only) Allows the controller to use the first four digi-
tal inputs to select a setpoint (see Figure 7.12). If the inputs’ states
remain constant, the controller will continue to use the selected set-
point unless overridden. Override the set of digital inputs by select-
ing a different setpoint (via the
SP SELECT
parameter in the
TUN-
ING
menu, or through communications), or by using the fifth digital
input to select the remote or 2nd setpoint. To “rearm” this set of digi-
tal inputs, the DIN combination must change.
•
REM. SETPT.
Setpoints
DIN 1
DIN 2
DIN 3
DIN 4
SP
X
O
O
O
SP2
O
X
O
O
SP3
X
X
O
O
SP4
O
O
X
O
SP5
X
O
X
O
SP6
O
X
X
O
SP7
X
X
X
O
SP8
O
O
O
X
