Rockwell Automation 193 193-5.0: Bulletin 913/592 SMP-3 Solid-State Overload Relay - Manual (Page 61)

Chapter 4 – Functional Description
4-13
Human Interface Module Adapter. The Human Interface
Modules were designed to allow users to locally program, mon-
itor, and/or control master devices (such as SMP-3 overload
relays, Drives, or SMCs). The SMP-3 overload relay can com-
municate directly to a Drive HIM (1201-HA_) or a SMP-3 HIM
(193-HIM1). However, since the SMP-3 HIM was designed
specifically for the SMP-3 overload relay, it provides more
functionality than the Drive HIM when used with the SMP-3.
For example, the SMP-3 HIM can control both OUT A and
OUT B, while the Drive HIM can only control OUT A. See
Chapter
5 for more Human Interface Module information.
Communication Module Adapter. The SMP-3 overload relay
communicates to its adapters (slaves) via SCANport, an Allen-
Bradley proprietary serial communication protocol. The pur-
pose of the Communication Module is to convert the SMP-3’s
SCANport protocol to the desired logic controller protocol,
such as R I/O or DeviceNet

. See Chapter 6 for more Com-
munication Module information.