User Manual

TMCM-1270 TMCL
™
Firmware Manual • Firmware Version V1.00 | Document Revision V1.0 • 2017-Mar-02
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6 Module Specific Modes
This section explains how the three availabe inputs can be configured. The TMCM-1270 implements
three different predefined modes, each one with a different set of functions for these three pins. Axis
Parameter number 254 “Module Specific Mode” (see Section 4) contains the current mode. In Table 16, the
functionalities for all three pins in each configuration are shown.
Pin Functionalities of TMCM-1270 Specific Modes
Mode Id GPI1 GPI2 GPI3
Mode Reference 0 Home Switch Left Endstop Switch Right Endstop Switch
Mode Encoder 1 Home Switch Encoder A Encoder B
Mode GPI 2 Analog Input 1 Digital Input 2 Digital Input 3
Table 16: Pin Functionalities of TMCM-1270 Specific Modes
In Mode Reference, the three digital inputs correspond to reference switches: Home, Left Endstop and
Rigth Endstop for GPI 1, 2 and 3 respectively. The Reference Search feature is only available in this mode.
See more information about Reference Seach in Section 7.1.
In Mode Encoder, GPI2 and 3 correspond to the encoder pins A and B.
Finally, all three inputs are function free inputs available for the user in Mode GPI.
All these inputs are read with a Get Input TMCL Command with Bank 0 (Digital Inputs). The only exception
is GPI1 in Mode GPI (Analog Input 1), which is read with Bank 1 (analog inputs). See more information
about how to read the state of an input in Section 3.6.10.
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