Specifications

20 Gear Drive, Plymouth Industrial Park, Terryville, CT 06786 page: 17
Tel: [phone] Fax: [phone] E-mail: Sales @amci.com
3401 Manual
Point I/O Stepper Module
Revision 2.0
Chapter 3: Configuration Programming
Configuration Mode
The Configuration Mode provides the ability to select the proper setup configuration to match the stepper
application without having to set any switches. The configuration file, consisting of four 16-bit words,
allows the following parameters to be defined.
1. If the Limit Input will as and Emergency Stop Input
2. If the Limit Input will be used as a CW End Limit Switch
3. If the Limit Input will be used as a CCW End Limit Switch
4. If CW Homing Operations will be allowed
5. If CCW Homing Operations will be allowed
6. If a Backplane Home Proximity bit will be part of the homing operations
7. The output type, either CW and CCW Pulses or Pulse and Direction
8. The Limit Input and Home input active state
9. The Starting Speed. The starting speed is the pulse frequency at which every move begins and end.
Some portions of the homing operations are also performed at the starting speed.
10. The Starting Speed. The starting speed is the pulse frequency that every move begins and ends at.
Some portions of the homing operations are also performed at the starting speed.
Configuration Mode Output Data
(Eight 16 bit words sent from the PLC to the 3401 module)
While in configuration mode, the output registers have the following format.
16 bit output
Word
Configuration
Output Data
Units Range
0 Configuration Bits MSW See description below
1 Configuration Bits LSW See description below
2 Starting Speed MSW
Steps/Second 1 to 1,000,000
3 Starting Speed LSW
4 0
5 0
6 0
7 0
Note 1: The module will power up in Command Mode showing a Configuration Error. The
Configuration Error bit will remain set as long as valid configuration data has not been written to
the module.
Note 2: If Configuration Mode is entered while a move is occurring, the Command Error bit will be set,
the move will run to completion, and then the module will enter Configuration Mode.
Note 3: The Starting Speed is programmed in two words. The MSW contains the 1000 places and the
LSW contains the 1s, 10s, and 100s places of the value. For example, if the starting speed is
12,345 steps/sec, than the MSW would 12 and the LSW would be 345.