SCADA Commands

scada

Syntax

scada bridge-id

Context

config

Description

This command configures a SCADA bridge on the Integrated Services card.

Parameters

bridge-id

specifies a SCADA bridge, in the format slot/mda/bridge-id where bridge-id is 1 to 16

branch

Syntax

[no] branch branch-id

Context

config>scada

Description

This command configures a branch that is used by the configured bridge.

The no form of the command deletes the specified branch.

Parameters

branch-id

the branch identifier

Values

1 to 32; branches 1 and 2 are dedicated as master branches, and branches 3 to 32 are slave branches (MDDB)

1 to 30; branches 1 and 2 are dedicated as master branches, and branches 3 to 30 are slave branches (PCM with A-Law encoding)

1 to 22; branches 1 and 2 are dedicated as master branches, and branches 3 to 22 are slave branches (PCM with Mu-Law encoding)

1 to 32; in broadcast mode, branch 1 is dedicated as the master branch (VCB with A-Law encoding)

1 to 24; in broadcast mode, branch 1 is dedicated as the master branch (VCB with Mu-Law encoding)

gain

Syntax

gain

Context

config>scada>branch

Description

This command enables the context to set gain levels for a branch.

input

Syntax

input decibels

Context

config>scada>branch>gain

Description

This command sets the input gain for the branch. The input gain defines the magnitude of the increase or decrease of the signal transmitted into the bridge.

Default

0

Parameters

decibels

number of decibels by which the transmitted signal is increased or decreased

Values

–16 to +9 dB (in 1-dB increments)

output

Syntax

output decibels

Context

config>scada>branch>gain

Description

This command sets the output gain for the branch. The output gain defines the magnitude of the increase or decrease of the signal received from the bridge.

Default

0

Parameters

decibels

number of decibels by which the received signal is increased or decreased

Values

–16 to +9 dB (in 1-dB increments)

squelch

Syntax

[no] squelch

Context

config>scada>branch

Description

This command administratively enables the squelching function for the branch. The squelching function can only be enabled on a branch if it is enabled at the bridge level (config>scada>mddb>squelch or config>scada>pcm>squelch).

The no form of this command administratively disables the squelching function on the branch.

The command does not apply to the VCB application.

Default

squelch (slave branches)

no squelch (master branches)

mddb

Syntax

mddb

Context

config>scada

Description

This command enables the context to configure MDDB parameters for a SCADA bridge.

pcm

Syntax

pcm

Context

config>scada

Description

This command enables the context to configure PCM multidrop bridge parameters for a SCADA bridge.

force-active

Syntax

force-active master branch-id

Context

config>scada>mddb

config>scada>pcm

Description

This command forces a master branch to become active. The command applies only if redundant-mode is set to manual mode.

Default

1

Parameters

branch-id

the master branch that is forced to become active

Values

1 or 2

redundant-mode

Syntax

redundant-mode redundant-mode

Context

config>scada>mddb

config>scada>pcm

Description

This command configures the redundancy mode for the master inputs of the SCADA bridge.

In manual mode, the branch must be made active manually using the force-active command in order to receive data from the master input. The bridge always broadcasts to both master branches.

In auto mode, both the master branch inputs are received simultaneously. This requires the master input behavior to be similar to an RTU, which transmits data when active and transmits either all 1s (MDDB) or no data (PCM) when inactive.

Default

manual

Parameters

redundant-mode

specifies the redundancy mode for the master inputs of the SCADA bridge

Values

manual | auto

report-alarm

Syntax

[no] report-alarm [hcmOof] [hcmRai]

Context

config>scada>mddb

Description

This command enables the logging of alarms.

The no form of the command disables the logging of alarms.

Default

no report-alarm

Parameters

hcmOof

specifies HCM out-of-frame errors

hcmRai

specifies HCM remote alarm indications

speed

Syntax

speed {600 | 1200 | 2400 | 4800 | 9600 | 19200 | 38400 | 56000}

Context

config>scada>mddb

Description

This command configures the SCADA MDDB speed for RS-232 and X.21 interfaces. SCADA MDDB is supported only at subrate speeds (less than 64 kb/s) on X.21 interfaces.

Default

2400

Parameters

600

sets the SCADA MDDB speed at 600 (supported on RS-232 interfaces only)

1200

sets the SCADA MDDB speed at 1200

2400

sets the SCADA MDDB speed at 2400

4800

sets the SCADA MDDB speed at 4800

9600

sets the SCADA MDDB speed at 9600

19200

sets the SCADA MDDB speed at 19200

38400

sets the SCADA MDDB speed at 38400

56000

sets the SCADA MDDB speed at 56000

squelch

Syntax

squelch timeout timeout

squelch reset

no squelch

Context

config>scada>mddb

config>scada>pcm

Description

This command enables the squelching function for all branches configured on a bridge. This setting takes priority over the setting at the branch level; that is, if squelch is disabled with this command, it cannot be enabled for individual branches.

The no form of this command disables the squelching function on a bridge.

Default

no squelch

Parameters

timeout

the interval between when an alarm is raised indicating that a branch has locked up and is continuing to send data to the master, and squelching is triggered

Values

1 to 120 s

reset

puts the bridge back into the normal state

squelch-recovery

Syntax

squelch-recovery [mode] [time time]

Context

config>scada>mddb

config>scada>pcm

Description

This command configures squelch recovery attributes. When the squelch-recovery mode is configured as auto, the branch will automatically be put back into the normal state after the configured time. If the branch remains locked up, the branch will automatically be squelched again.

Configuring the squelch-recovery mode as manual disables automatic squelch recovery. To put the bridge back into the normal state, use the squelch reset command.

Default

squelch-recovery manual

Parameters

mode

specifies the squelch recovery mode

Values

manual | auto

time

the interval after which the branch will automatically be put back into the normal state

Values

1 to 120 s

vcb

Syntax

vcb

Context

config>scada

Description

This command enables the context to configure voice conference bridge parameters for a SCADA bridge.

idle-code

Syntax

idle-code abcd-code

no idle-code

Context

config>scada>vcb

Description

This command defines the ABCD signaling code to be transmitted when the E&M interface is configured to transmit idle fault signaling (see fault-signaling).

The no form of the command reverts to the default value.

This command is supported only when VCB is operating in vcb-branch-initiate mode.

Default

0 (for Mu-Law companding)

13 (for A-Law companding)

Parameters

abcd-code

the 4-bit ABCD value to be transmitted

Values

0 to 15 (can be entered in decimal, binary, or hexadecimal format)

seized-code

Syntax

seized-code abcd-code

no seized-code

Context

config>scada>vcb

Description

This command defines the ABCD signaling code to be transmitted when the E&M interface is configured to transmit seized fault signaling (see fault-signaling).

The no form of the command reverts to the default value.

This command is supported only when VCB is operating in vcb-branch-initiate mode.

Default

0 (for Mu-Law companding)

13 (for A-Law companding)

Parameters

abcd-code

the 4-bit ABCD value to be transmitted

Values

0 to 15 (can be entered in decimal, binary, or hexadecimal format)