GE IS410TCDMS1A/2A Processor Terminal
The RX7i control system hardware consists of an RX7i rack and up to seven Series 90-70 expansionracks. The CPU resides in slot 1 of the main rack. RX7i racks use a VME64 backplane that provides up
to four times the bandwidth of existing VME based systems, including the current Series 90-70
systems for faster I/O throughput. The VME64 base supports all standard VME modules including
Series 90-70 I/O and VMIC modules.
Expansion racks support Series 90-70 discrete and analog I/O, the Genius Bus Controller, and the
High-Speed Counter. The CPU provides an embedded auto-sensing 10/100 Mbps half/full duplex
Ethernet interface.
RX7i supports hot standby (HSB) CPU redundancy, which allows a critical application or process to
continue operating if a failure occurs in any single component. A CPU redundancy system consists of
an active unit that actively controls the process and a backup unit that is synchronized with the
active unit and can take over the process if it becomes necessary. Each unit must have a redundancy
CPU, (IC698CRE020, CRE030 or CRE040). The redundancy communication path is provided by
IC698RMX016 Redundancy Memory Xchange (RMX) modules set up as redundancy links. For details
on the operation of PACSystems redundancy systems, refer to the PACSystems Hot Standby CPU
Redundancy User Manual, GFK-2308.
Note: Extended operation with dissimilar CPU types is not allowed. During normal operation, the
primary and secondary units in an HSB redundancy system must have the same CPU
model type.
The primary and secondary units of an HSB redundancy system can have dissimilar model types for
a limited time, for the purpose of system upgrade only. Fail wait times for the higher performance
CPU in a dissimilar redundant pair may need to be increased to allow synchronization.
RX7i communications features include:
▪ Open communications support includes Ethernet, Genius, and serial protocols.
▪ A built-in 10/100mb Ethernet interface that has dual RJ45 ports connected through an autosensing
switch for upload, download and online monitoring. This eliminates the need for
rack-to-rack switches or hubs. The CPU Ethernet Interface provides basic remote control
system monitoring from a web browser and allows a combined total of up to 16 web server
and FTP connections. For details on Ethernet Interface capabilities, refer to PACSystems RX7i
& RX3i TCP/IP Ethernet Communications User Manual, GFK-2224.
▪ Two serial ports, one RS-232 and one RS-485.
▪ An RS-232 isolated Ethernet Station Manager serial port.

RSTi-EP CPUs make it possible to incorporate the entire PACSystems programming suite in stand-alone
applications or as auxiliary control in larger process applications that use RX3i. They allow the User to
leverage the power and flexibility of PACSystems in smaller applications.
At a high level, CPE100 supports real-time application status, remote diagnostics and:
• Dual LAN interfaces with four Ethernet ports
• Built-in RS-232 serial port
• Support for a range of communications protocols, including PROFINET
• Up to 1 MB of non-volatile user memory.
All in just 1.5” (38.1mm) of DIN rail space.
CPE100 supports two independent 10/100 Ethernet LANs. LAN1 has only one port and is dedicated to
highspeed Ethernet and whereas LAN2 is comprised of 3 switched ports (labelled as 2, 3 & 4)
configurable as either a second embedded Ethernet controller or an embedded PROFINET controller.
All four ports are located on the front panel of the CPU.
The Ethernet controller Interface of CPE100 provides Transmission Control Protocol and Internet
Protocol (TCP/IP) communications with other control systems, host computers running the Host
Communications Toolkit or programmer software, and computers running the TCP/IP version of the
programming software. These communications use the Service Request Transport Protocol (SRTP),
Modbus TCP, and Ethernet Global Data (EGD) protocols over a four-layer TCP/IP (Internet) stack.
The RSTi-EP CPE100 also embeds an industry standard PROFINET controller that allows it to connect
to any type of PROFINET I/O solutions either from GE or any third party. It offers enhanced productivity,
flexibility and performance advantages for virtually any type of control application in a range of
industries. PROFINET supports a variety of I/O without compromising system performance and can
operate in high-noise environments.
The RSTi-EP CPE100 is secure by design, incorporating technologies such as Trusted Platform Modules
(currently disabled) and verified boot. Centralized configuration allows encrypted firmware updates to
be executed from a secure central location.