Basic Data Manipulation .1 Test Mode enhancements

The C264 Test Mode allows you to deactivate the DOU/CCU relays output in event of control sequence.

The enhancements allow to:

1. manage the Test Mode in event of C264 redundancy (Test Mode is managed only if the computer is in active mode, so a computer in standby mode can't be set in Test Mode)

2. manage the control feedback datapoints

In event of computer redundancy, the Test Mode activation is performed independently for each C264 (Main 1 rack and Main 2 rack) from SMT. If the Active C264 is set in Test Mode, it remains Active. A Standby C264 cannot be set in Test Mode.

If the control is related to a datapoint: that is, feedback datapoint defined in configuration;

this one takes the control value in Test Mode:

• Open / Reset order => Open state for DPS, Reset state for SPS

• Close / Set order => Close state for DPS, Set state for SPS

To leave the Test mode, the user, through the SMT, changes the C264 mode to Operational.

The C264 automatically goes in Maintenance mode (transient) before going in Operational mode.

The user of the Test Mode owns all responsibility of controls performed during the Test Mode, and before leaving the Test Mode, he owns all responsibility to restore the system. In Test Mode, all controls performed may impact Isagraf programs or PSL automatisms.

NOTE 1: Digital and Analogue Setpoint with measurement feedback are not managed in Test Mode: that is, they are managed as in Operational mode.

NOTE 2: IEC61850 exchanges (reports, gooses) are not impacted by the C264 Test Mode. That means that a control done in Test Mode, that is sent to another computer - that is not in test mode - or to an IED (legacy or not) may be fully and physically executed on the device.

5.6.2 Device order running

An « order running » SPS is managed on a per module basis. The “bay order running” is still managed.

In event of Direct Execute control, this SPS is:

• SET as soon as the C264 accepts the control: that is, after the control checks

• RESET when the final control acknowledgement is sent In event of SBO control, this SPS is:

• SET as soon as the C264 accepts the control selection: that is, after the selection checks

• RESET when the final control acknowledgement is sent

An optional "order running SPS" on a per control type basis shall be available: that is, one for open order / one for close order

In event of Direct Execute control, this SPS is:

• SET as soon as the execute control is received by the C264: that is, before the checks

• RESET when the final control acknowledgement is sent

In event of SBO control, this SPS is:

• SET as soon as the control selection is received by the C264: that is, before the checks

• RESET when the final control acknowledgement is sent

In event of direct negative acknowledgement, those SPS may be SET then RESET with the same time stamping. Those SPS shall be available only for DPC.

5.6.3 Controls management from PSL

A control issued from a PSL (or an DI/DO association) will be accepted even if an other control is already on-going on the same output. In this event, the previous control is stopped and the new control is launched (except if the new one is the same order than the previous one: in this event, the new control is refused).

There are three ways to manage. PSL refers to PSL or DI/DO association, and Operator refers to IEC61850 / ISAGRAF / local HMI:

• Control 1 from PSL and Control 2 from Operator

• Control 1 from Operator and Control 2 from PSL

• Control 1 from PSL and Control 2 from PSL

The event « Control 1 from Operator and Control 2 from Operator » is already managed: in this event, the control 2 is rejected.

Events – Control 2 different from Control 1

Control 1 Control 2 Action Acknowledgement

PSL Operator Control 1 cancelled n/a (no ack managed in PSL) Operator PSL Control 1 cancelled Ack “Operator cancel”

PSL PSL Control 1 cancelled n/a (no ack managed in PSL) Operator Operator Control 2 ignored Ack “Control in progress”

Events – Control 2 identical to Control 1

Control 1 Control 2 Action Acknowledgement

PSL Operator Control 2 ignored Ack “Control in progress”

Operator PSL Control 2 ignored n/a (no ack managed in PSL)

PSL PSL Control 2 ignored n/a (no ack managed in PSL)

Operator Operator Control 2 ignored Ack “Control in progress”

5.6.4 PSL and Redundant Operation

Computer A is in active mode and Computer B is in standby mode. On the OI, the operator uses C264 DI operation mimics and applies input to the PSL. After the Timer time (T-ON is equal to 20 seconds), these events occur:

• The FBD output, an SPS on computer A/B, goes to the SET position

• FBD output 1, an SPC wired on DO of A/B and looped to DI for feedback, goes to the SET position

• FBD output 2, an SPC wired on DO of A/B and looped to DI for feedback, goes to the SET position

When Computer B goes into active mode and Computer A goes into standby mode, these events occur:

• The FBD output 1 (SPC) and the FBD output 2 (SPC) stay in the SET position

• The FBD Output (SPS) goes to the RESET position for the Timer time (T-ON is equal to 20 seconds).

After this time, the FBD Output (SPS) goes to the SET position.

When you use Micom S1 to modify the time of the timer, the FBD Output (SPS) goes to the RESET position. It stays in the RESET position for the modified time and then goes to the SET position.

When Computer A goes into the Faulty mode and Computer B goes into the active mode, the FBD Output (SPS) goes to the RESET position for the duration equal to the Timer time.

Then the FBD Output (SPS) goes to the SET position. The FBD Output 1 (SPC) and FBD Output 2 (SPC) stay in the SET position.