Product Description

The GE Fanuc’s IC698RMX016 is a 16MB Redundant Memory Xchange for the Rx7I Pacsystem.  It has the following sizing: 6.299 inches widde x 9.187 inches high. It has 16MB of SDRAM user memory. The operating voltage from power supply is +5 V DC. Current requirements are 1.8A. The unit has a fiber optic LC type connector which, conforms to IEC 61754-20, and a zirconium ceramic ferrule. The maximum insertion loss is 0.35 dB with a return loss of -30dB. An acceptable temperature range is between -20°C and +85°C. To complete installation, you need to make sure you have all of the following: A PACSystems RX7i CPU with release 2.00 or later firmware; a PACSystems Rx7i CPU rack with power supply; a PC-compatible computer with CIMPLICITY Machine Edition – Logic Developer PLC, version 4.5 or later programming software and the necessary cables.

Note that in order to meet radiated emission standards, RX7i systems that include more than one Memory Xchange modules have to be installed in a conducting metal enclosure, or equivalent. Memory modules should only be installed in RX7i Rack 0 (main). It is advised that RMX modules are installed in slots 4 and 3 of the main rack. This provides the RMX modules VME interrupt request priority. Although such configuration is advisable, locating RMX modules in slots 4 and 3 is not strictly required. To install IC698RMX016 Redundant Memory Xchange, make sure the rack power is switched off. Next slide the module into the exact slot it was configured for in the system. Proceed to press the board in place without forcing it. Tighten faceplate top and bottom screws. Next make sure to connect cables to RX and TX connectors. The fiber optic cable should be routed from the TX connector to next node’s RX connector. Connect the that board’s TX cable to next node’s RX connector. Repeat until last node in the ring has its TX routed to the RX connector of the first node. Turn the power on.

The IC698RMX016 initially powers in a non-configured state where its optical transmitter is disabled. The Redundant Memory Xchange module will not operate on a network before the RX7i CPU sends the module a hardware configuration.  For the purpose of reflective memory operation, the user can choose to configure the following parameters: Redundant Transfer Mode, Node ID, Network Memory Offset, Rogue Master, and Interrupt enable. Note that if the Redundant Link operation is selected, the above-mentioned parameters will be set by the CPU and are therefore not configurable.  Note that when IC698RMX016 is used as a reflective memory module with a general purpose, additional functions that extend beyond the basic read and write operations, inclusive of reading interrupt status, enabling interrupts, reading parity errors, and enabling parity may be performed by user logic.

The IC698RMX016 Redundancy Memory Xchange Module comes in the RX7i PACSystems series by GE Fanuc Automation. The purpose of this module is to operate as a node on a reflective memory network or as a specific link that attaches 2 CPUs in a redundant system. It is compatible with the 5565 line of memory devices and it can determine the amount of data sharing between a PLC and other computing devices. Each of the nodes in the GE Fanuc Automation IC698RMX016 Redundancy Memory Xchange Module is connected in a daisy-chained loop mechanism by using fiber-optic cables. This connection method consists of connecting the first node to the second node and then the transmitter of the second node is connected to the receiver of the third node and so on until the loop has been connected to the first node and the loop is finally complete.
 

The GE Fanuc Automation IC698RMX016 Redundancy Memory Xchange Module is meant to be installed in a single slot in the RX7i PACSystems rack it comes with a reflective memory capacity of 16 MB, and the software configuration is performed to the old node parameters to prepare them for the new applications. Besides all of these functions, this module is also network-compatible with the VMIC 5565 reflective memory devices and it can be connected to them through multimode fiber cables that are up to 300 meters long. Some of the accessories included in this catalog to be used with the GE Fanuc Automation IC698RMX016 Redundancy Memory Xchange Module are a redundancy memory module, a control memory module, fiber-optic exchange cables, a lithium battery pack rack fan assembly, and different power supplies that can be used with this module to enhance its functioning.