VIBRO-METER 200-595-074-323 VM600 system CPU management card, non-redundant

200-595-074-323    VM600 system CPU management card, non-redundant

Open Collector Bus

Each Open Collector Bus (OC Bus) contains 16 parallel bus lines and is a dedicated bus

linking one specific IRC4 or RLC16 card to two specific IOC4T or IOC8T cards

(seeFigure3-6).

The OC buses are reserved for sending alarm signals from an MPC4/ IOC4T card pair or an

AMC8/ IOC8T card pair to an IRC4 or RLC16 card. These signals are then used to switch

relays on the IRC4 or RLC16.

The IOC card drives the OC Bus lines using open collector driver circuitry (see Figure3-7).

In the event of an alarm, the bus driver control signal goes high.

The attribution of a specific alarm signal (generated by an MPC4/ IOC4T card pair or an

AMC8/ IOC8T card pair) to an OC Bus line is done under software control.

Notes

1. Specific alarms (A+, D− and so on) are attributed to the OC Bus lines using the VM600 MPSx software.

SeeTable9-4 for information on the normal state of the control signal.

2. For a normally energised (NE) relay, select an inverted relay control line by placing jumper Jc.

For a normally de-energised (NDE) relay, select jumper Jb.

Either Jb or Jc must be selected (that is, it is not possible to select both or to select neither).

3. Relay#A represents one of the 16 relays (RL1 to RL16) on the RLC16 card.

4. Relay#B represents one of the 8 relays (4 DPDT or 8 SPDT) on the IRC4 card

The Raw Bus contains 64 parallel bus lines, arranged as 32 differential line pairs. The

ABE04x system rack contains a single bus of this type which is common to all cards located

in slots1to18 (see Figure3-6). As such, this is a flexible bus allowing the transfer of data

between various cards in the rack (see Figure3-6). Its principal applications are to:

• Share raw analog signals input on channels1to4 of an IOC4T card with other cards in

the rack (for example, to XMC16 and/or XMV16 cards installed in a rack featuring both

MPS and CMS hardware). An example of this is shown in Figure3-8.

NOTE: The XMVS16 card has the same capabilities and features as the XMV16 card,

except that the XMVS16 cannot access and therefore cannot configure

anything on the VM600 raw bus.

Use of the Raw Bus for this purpose is described further in 9.11Using the Raw Bus to

share measurement channel inputs.

• Supplement the OC Bus by allowing additional alarm signals to be routed to the relays

on an IRC4 or RLC16 card.

Use of the Raw Bus for this purpose is described further in 9.12.2Using the Raw Bus to

switch relays and 10.8.2Using the Raw Bus to switch relays.

Signals are placed on the Raw Bus by setting jumpers on an IOC4T (see Figure3-8). If the

signals are required by an XMC16 and/or XMV16 card, the corresponding XIO16T card is

configured using the VibroSight® software (that is, the XIO16T hardware is fully software

configurable)

The IOC8T card does not support the Raw Bus, so sharing an analog signal

between an AMC8/ IOC8T card pair and a condition monitoring card pair (such as

an XMx16/XIO16T) requires that either:

•A DC output from the IOC8T is connected to a dynamic input channel of the

XIO16T using external cabling

•Modbus is used to communicate the analog values (which requires that a CPUM

card is also installed in the rack)

VM600 1U 19" rack backplane (ABE056)

The VM600 MPS using a 1U 19" slimline rack (ABE056) with a custom-designed backplane

contains a similar version of the backplane currently used with the standard 19" 6U (ABE04x)

rack described in 3.4VM600 6U 19" rack backplane (ABE04x).

This backplane consists of the following:

• VME power supply (P1)

• discrete bus on the back of P1 (P3)

• P2 and P4 through connections.

The different types of connectors used are:

• DIN41612 connector, 96 male and female straight poles, press fit

• Connectors: quality level 2; mechanical life 400 connection cycles.

The section view of the backplane in Figure3-9 shows:

• The connections of the P3 port

• The connections between P2 and P4

• The connections between the power supply connectors and backplane