Maple Systems STEPware-100 - Manual (Page 3)

OIT Models Supported
The STEP1 Protocol supports the following OIT models:
Previous models, such as the MAP320B-240B or OIT3200-A00, are not supported.
Operational Overview
The STEP1 Protocol allows the OIT Family and MAP Family Operator Interface
Terminals to provide the human-machine interface between an operator and an ASCII
compatible computer or host controller. Any controller that is capable of sending and
receiving ASCII characters through a serial port can potentially communicate to an OIT
Family or MAP Family Operator Interface Terminal using the STEP1 Protocol.
The STEP1 Protocol allows the OIT to receive and send simple ASCII character strings.
The OIT accepts:
• printable ASCII characters — which immediately display on the OIT
• non-printable ASCII control characters (Control Codes) — which directly affect the
OIT’s display
• and special ASCII character combinations (Control Commands).
Control Commands cause the OIT to:
• modify the OIT’s configuration parameters
• display one of up to 500 predefined messages
• sound the OIT’s internal buzzer
• sound the OIT’s external buzzer (OIT3250, OIT4450, and OIT5400 only)
• turn the OIT’s LEDs on or off (OIT3250, OIT4450, and OIT5400 only)
• or print to a serial printer (OIT3250, OIT4450, and OIT5400 only).
The OIT can be programmed to send ASCII characters or predefined ASCII strings to the
host controller and the OIT’s display. Each of the OIT’s function keys can be
programmed with two strings of up to 40 ASCII characters (including ASCII control
characters). This allows each function key to simulate an on/off or momentary switch.
The OIT’s other keys send individual ASCII characters.
All supported OIT models are configured for use with the STEP1 Protocol using the
STEPware-100 configuration software. STEPware-100 is Windows-based configuration
software that allows you to setup all configurable OIT options (including configuration
parameters, predefined messages, and predefined ASCII strings) and download them to
the OIT. Many of the OIT’s configuration parameters can also be modified during
operation using the Control Commands.
ii STEP1 Protocol Operation Manual
1010-0096, Rev. 04
• MAP320D-240B
• MAP340D-240F
• MAP460D-240B
• OIT3160-A00
• OIT3165-A00
• OIT3175-A00
• OIT3185-A00
• OIT3200-B00
• OIT3250-B00
• OIT3600-B00
• OIT4160-A00
• OIT4165-A00
• OIT4175-A00
• OIT4185-A00
• OIT4400-B00
• OIT4450-B00
• OIT5400-B00