GE PACSystems RX7i Reference Manual page 47

Chapter 2. CPU Features & Specifications
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The stand-alone CPE400 uses a 1.2GHz quad-core microprocessor and real-time hypervisor
technology to run real time deterministic control applications concurrently with Field Agent
technology without any adverse impact of one over the other.
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A built-in RX3i PLC:
o User may program in Ladder Diagram, Structured Text, Function Block Diagram, or C.
o Contains 64Mbytes of configurable data and program memory.
o Supports auto-located Symbolic Variables that can use any amount of user memory.
o Reference table sizes include 32k bits for discrete %I and %Q and up to 32k words each for
analog %AI and %AQ. Bulk memory (%W) also supported for data exchanges.
o Supports up to 512 program blocks. Maximum size for a block is 128KB.
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Field Agent technology is a platform for securely applying Predix applications and secure connectivity
to the Predix Cloud as well as running edge apps. Running the Field Agent concurrently with the real-
time control applications allows the CPE400 to rapidly leverage external data. External monitoring
may be used to analyze and optimize entire business operations. The analysis can then be used to
dynamically adjust real-time industrial controls to align with changing business objectives in today's
Industrial Internet age.
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Supports four independent 10/100/1000 Ethernet LANs. Three are located on the front panel, as
shown in Figure 1. LAN1 attaches via the upper, dedicated RJ 45 connector. LAN2 and LAN3 each
attach via a pair of internally-switched RJ 45 connectors. The fourth LAN, labeled EFA (Embedded
Field Agent), is located on the underside (Figure 2), and is specifically used for Field Agent
connectivity (see Field Agent bullet just above).
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The embedded communications interface has dedicated processing capability, which permits the
CPU to independently support LAN1 and LAN2 with:
o up to 48 simultaneous SRTP Server connections;
o up to 16 simultaneous Modbus/TCP Server connections;
o 32 Clients are permitted; each may be SRTP or Modbus/TCP;
o OPC UA Server with support for up to 5 concurrent sessions with up to 10 concurrent variable
subscriptions and up to 12,500 variables;
o up to 255 simultaneous Class 1 Ethernet Global Data (EGD) exchanges.
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The embedded PLC may use one or both of the Ethernet LAN2 ports to support the embedded
Simplex PROFINET I/O Controller. PROFINET supports up to 32 I/O devices with update rates of 1 –
512ms. I/O device update rates of 8ms and faster are possible with 16 or fewer devices. Update rates
of 16ms and higher result whenever more than 16 devices are configured.
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Media Redundancy Protocol (MRP) allows the CPE400 to participate in a PROFINET I/O network with
MRP ring technology. This eliminates the I/O network as a single point of failure. The CPE400 may be
used as either a Media Redundancy Manager or Media Redundancy Client.
36 PACSystems* RX7i, RX3i and RSTi-EP CPU Reference Manual GFK-2222AD