Industrial Indexing Systems MSC-250 User Manual

IB-11B012 INDUSTRIAL INDEXING SYSTEMS, INC.
USER'S GUIDE MOTION CONTROL SYSTEM, MSC-250
1 - 10 DESCRIPTION MARCH 2003
rate value (refer to Figure 1.5). For each analog input cycle, the A/D (Analog-to-Digital)
converter reading is added to the offset value. The rate of change of the resulting sum is
limited by the slew rate value. This limited result is sign extended to a 32-bit value and
made available to the Macroprogram.
The analog output channel provides a ±10 VDC output channel with its common
referenced to controller ground. Under Macroprogram control, the user may select an
analog offset value and a maximum slew rate for the analog output channel (refer to
Figure 1.5). For each analog output cycle, the analog output value specified in the
Macroprogram is added to the analog offset value and the slew rate limit applied. The
resulting value is output to the D/A (Digital-to-Analog) converter.
A pair of voltage reference signals are available for connection to a potentiometer. Each
reference provides nominally +10 VDC and -10 VDC and each can deliver up to 10 mA of
current.
1.2.3 INPUT/OUTPUT MODULES
The MSC-250 controller has 16 on-board locations for I/O (Input/Output) modules (refer to
Figure 1.6). In addition, two IOE-850 I/O Expanders of 16 positions each can be daisy-
chained from the INPUT/OUTPUT EXPANDER PORT to provide an additional 32 I/O
locations. Any of the 48 positions can be used for either an AC or DC input or output
module.
When equipped with an input module, the controller will monitor the location for a specific
change in state of the module, as directed by the Macroprogram, and will perform specific
actions when the state change occurs. When equipped with an output module, the
Figure 1.5 - Analog Input and Output Channel Block Diagrams

Industrial Indexing Systems MSC-250 Specifications

General

Brand	Industrial Indexing Systems
Model	MSC-250
Category	Controller
Language	English