K-WANG
GE PACSystems™ RX3i IC695CPU310 Central Processing Unit
GE PACSystems™ RX3i IC695CPU310 Central Processing Unit
The RX3i CPU is programmed and configured by the programming software to perform real time control of machines, processes, and material handling systems. The CPU It communicates with the programmer and HMI devices via a serial port using SNP Slave protocol. It communicates with I/O and smart option modules over a dual backplane bus that provides both:
■ High-speed, PCI backplane for fast throughput of new advanced I/O.
■ Serial backplane for easy migration of existing Series 90-30 I/O
Features
■ Contains 10 Mbytes of battery-backed user memory and 10 Mbytes of non-volatile flash user memory.
■ Provides access to bulk memory via reference table %W. The upper limit of this memory area can be configured to the maximum available user RAM.
■ Configurable data and program memory.
■ Programming in Ladder Diagram, Structured Text, and C.
■ Supports auto-located Symbolic Variables that can use any amount of user memory.
■ Reference table sizes include 32Kbits for discrete %I and %Q and up to 32Kwords each for analog %AI and %AQ.
■ Supports most Series 90-30 modules and expansion racks. For a list of supported I/O, Communications, Motion, and Intelligent modules, see the PACSystems RX3i Hardware and Installation Manual, GFK-2314.
■ Supports up to 512 program blocks. Maximum size for a block is 128KB.
■ Test Edit mode allows you to easily test modifications to a running program.
■ Bit-in-word referencing allows you to specify individual bits in a WORD reference in retentive memory as inputs and outputs of Boolean expressions, function blocks, and calls that accept bit parameters.
■ Battery-backed calendar clock.
■ In-system upgradeable firmware.
Operation, Protection, and Module Status
Operation of this module can be controlled by the threeposition RUN/STOP switch or remotely by an attached programmer and programming software. Program and configuration data can be locked through software passwords. The status of the CPU is indicated by the eight CPU LEDs on the front of the module. (See “LED Operation” on page 5)
Battery
A three-cell lithium battery pack (IC698ACC701) is installed as shown in the figure below. The battery maintains program and data memory when power is removed and operates the calendar clock. When replacing the battery, be sure to install a new battery before disconnecting the old one.
Installation should not be attempted without referring to the PACSystems RX3i Hardware and Installation Manual, GFK-2314.
1. Make sure that rack power is off.
2. Install the CPU module in rack 0. The CPU requires two slots and can use any slots except the highest numbered (rightmost) slot. Ensure mounting screws are tightened to completely secure the CPU in the rack.
3. Turn on power. The module should power up. When the CPU has successfully completed initialization, the OK LED stays on and the RUN and EN LEDs are off. The CPU is now ready to be programmed.
4. Connect the battery to either of the battery connectors on the module. (You can connect the battery at any step in the installation process but it will begin to drain immediately unless power is applied. To maximize battery life, install it after power has been turned on).
Programmer Connection
The programmer can communicate with the CPU via the serial port 1, serial port 2, or the rack-based Ethernet interface.
If you connect your programmer via an Ethernet TCP/IP network, you will need a CAT5 standard Ethernet cable with RJ-45 connectors. Before connecting the programmer and RX3i to the Ethernet TCP/IP network you must set the IP address, using the Initial IP Address software tool. After setting the IP address, connect the RX3i and the computer running the programming software to the Ethernet Interface. For detailed information on programmer connection via Ethernet TCP/IP, refer to the TCP/IP Ethernet Communications for PACSystems User’s Manual, GFK-2224.
For a description of programming functions, consult Proficy™ Machine Edition Logic Developer-PLC Getting Started, GFK-1918 and the software online help.
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