Rockwell Automation 1771-SF1 SERVO INT MOD - Manual (Page 10)

Component Interfacing, Module
Preparation, and Installation
Chapter 2
2Ć6
The module should be located in the I/O slot adjacent to the Micro
Controller (Cat. No. 1771-UC1). If located further down the rack,
propagation delays due to longer signal paths along the backplane could
degrade performance. High-speed communication between the micro
controller and servo interface module necessitates this location.
The servo interface module must be used with the micro controller. It
cannot operate with PC processors or adapters.
The servo interface module can be used in the same I/O rack with any of
the standard AC and DC 1771 I/O modules. However, it must not be used
in an I/O rack containing microprocessor-based I/O modules. The only
exceptions to this are the following microprocessor-based I/O modules
which do not interfere with the operation of the servo interface module.
8-Bit Analog Input Module (Cat. No. 1771-1E)
Encoder/Counter Module (Cat. No. 1771-IJ/IK)
CAUTION: The Servo Interface Module (Cat. No. 1771-SF1)
will operate only when paired with the Micro Controller (Cat.
No. 1771-UC1).
WARNING: Avoid placing microprocessor-based 1771 I/O
modules (except as noted) in the same I/O rack with the servo
interface module. Unpredictable operation could occur with
resulting damage to equipment and/or injury to personnel.
Module Installation