FOXBORO FBM237 P0916CC Communication card

ROMboot Sequence 1. ROMboot is configured/enabled and executed at powerup (optionally also at reset) in one of two ways: a. By the Environment (ENV) command (refer to Appendix A). b. By the RB command assuming there is valid code in the EPROMs (or optionally elsewhere on the module or VMEbus) to support it. 2. If ROMboot code is installed, a user-written routine is given control (if the routine meets the format requirements).Your routine must pass a checksum test, which ensures that this routine was really intended to receive control at powerup.

Network Boot Sequence

The Network Auto Boot routine automatically scans for controllers and devices in a specified sequence until a valid bootable device containing a boot media is found or the list is exhausted. 

2. If a valid bootable device is found, a boot from that device is started. The controller scanning sequence goes from the lowest controller Logical Unit Number (LUN) detected to the highest LUN detected. (Refer to Appendix C for default LUNs.)

Network Auto Boot is a software routine contained in the 167Bug EPROMs that provides a mechanism for booting an operating system using a network (local Ethernet interface) as the boot device.

At powerup, Network Boot is enabled

and providing the drive and controller numbers encountered are valid, the following message is displayed on the system console: "Network Boot in progress... To abort hit" Following this message there is a delay to allow you to abort the Network Boot process if you wish. To gain control without Network Boot, you can press the BREAK key or the software ABORT or RESET switches. 4. Then the actual I/O begins: the program pointed to within the volume ID of the media specified is loaded into RAM and control passed to it. Network Auto Boot is controlled by parameters contained in the NIOT and ENV commands. These parameters allow the selection of specific boot devices, systems, and files, and allow programming of the Boot delay. Refer to the ENV command in Appendix A. 

product application

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--ICS Triplex Rockwell T8151B/T8461/T8310

--Triconex/Foxboro:3625/3721/3503E/FBM237/FBM242

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