ABB 88VA02A-E GJR2365700R1010 Control Module for Transfer Procedure
Description:
88VA02A-E is belong to ABB Procontrol system. It is a control module for transfer procedure, used within a PROCONTROL master station. 88VA02A-E is part of the entire master station processor.  As an "auxiliary module" of the processor, it performs certain subfunctions of the entire master station program. However, each of these subfunctions is only executed after a specific command from processor module 88 VP01/VP02. The commands result from the command fields of the 48-bit data word in the program memory (see module description "Master station processor module 88 VP01/VP02", GKWE 705 180). The commands are transferred in coded form via the general-bus and are decoded on the module (the decoders are
not shown in the functional diagram).
In the following, the most important functional blocks are specified and their functions within the entire program of the master station processor module are described (see also "Functional diagram").

Speciafications:
Operating voltage: UD+ = +5 V
Current consumption: ID = 1.6 A
Power dissipation typ. : Pv = 8 W
Reference potential bus section: ZD = 0V

Q&A:
1. What's the difference between 88VA01 and 88VA02?
The number of telegram per block is different.
88VA01-E/R1010: Reception of 8 telegrams per block.
88VA02-E/R1010: Reception of 8 or 16 telegrams per block.

2. What's the features of 88VA02?
The module can be plugged into each of the two master stations of the PROCONTROL bus system, but is only available once for each station. It is provided with two standard interfaces: one of these is used to link the module with the master
station bus to which all modules of the master station (including master station coupling modules 88 VKOl) are connected. The second one is for the general bus (G-bus) which only connects the modules 88VA01/VA02, 88VP01/VP02 and
88VT01/VT02 with each other.