Envision Peripherals NV3128 User Manual download pdf (Page 42)

NV3128 RS-422A Machine-Control Routing Switch 2-18

2.4 ADDING A REDUNDANT CONTROLLER

A second Universal Control/Command Interpreter can be specially

ordered and installed for increased system reliability. If you have the

Universal Control card, you must also have the Universal Control

frame in order to install a redundant control card. Contact Technical

Support to verify that your frame can accept a redundant controller.

To install:

1. Remove the existing Universal Control/Command Interpreter from

the frame.

2. Replace the firmware PROMS on the existing module. In some

cases, new firmware supplied on floppy disks or sent to you by email

can be downloaded into the PROMs using UniDiag instead of replacing

the PROMs.

3. Plug both existing and new redundant control cards into the frame.

Note that Universal Control and Command Interpreter modules cannot

be interchanged under all applications.

2.5 IMPLEMENTING HOT CHANGEOVER (OBSOLETE)

Relay terminals on the rear panel of the NV3128 provide control of the

NV3128 should a hot changeover system be required. Call NVision

Technical Support as listed in Chapter 5 of this manual for instructions

in implementing this feature. This feature is available only for obsolete

systems and not for newer systems using the Universal Control card.

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 91 92

No comments

Envision Peripherals NV3128 User Manual Page 42