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Sensoray 2600 Programming Guide 25 Gateway Action Scheduling

Prototype: u32 S26_Sched2601_GetInterlocks( XACT x, u8 *LockFlags );

Returns: Error code as described in section 5.5. Zero is returned if the operation was successful.

Benchmark: 0.1 ms.

Notes: The MM includes two connectors for interlock power distribution. One connector receives power from up to six

interlock contacts, while the other connector serves as a daisy-chain to distribute the interlock power to IOMs.

Each interlock signal is called an interlock channel.

Every interlock channel occupies one circuit in each of the MM’s interlock power connectors. In addition, each

channel is routed to a metering circuit that enables the MM to monitor the channel’s voltage level. If a channel’s

interlock contact is closed, the interlock will supply voltage to the input connector, which in turn will convey the

voltage to the output connector and metering circuit.

Example: // Fetch the interlock status from MM number 0.

u8 flags;

u8 mask;

int i;

void *x = S26_SchedOpen( 0, 1 );

S26_Sched2601_GetInterlocks( x, &flags );

S26_SchedExecute( x, 1000, 0 );

for ( i = 0, mask = 1; i < 6; i++, mask <<= 1 )

printf( "Power %d is %s\n", i, ( ( flags & mask ) ? "on" : "off" );

7.3.3 S26_Sched2601_GetLinkStatus()

Function: Schedules the fetching of the status of the gateway’s sixteen IOM ports.

Prototype: u32 S26_Sched2601_GetLinkStatus( XACT x, u16 *LinkFlags );

Returns: Error code as described in section 5.5. Zero is returned if the operation was successful.

Benchmark: 0.1 ms.

Notes: The gateway automatically maintains a list of active IOM ports, called the Active Port List (APL). This function

returns a snapshot of the APL to the client.

Example: // Fetch the link status from MM number 0.

u16 flags;

u16 mask;

int i;

void *x = S26_SchedOpen( 0, 1 );

S26_Sched2601_GetLinkStatus( x, &flags );

S26_SchedExecute( x, 1000, 0 );

for ( i = 0, mask = 1; i < 16; i++, mask <<= 1 )

Parameter Type Description

x void *

Transaction handle obtained from S26_SchedOpen().

LockFlags u8 *

Pointer to a 1-byte application buffer that is to receive the interlock power state flags.

Each bit is associated with an interlock channel number. For example, bit 4 is

associated with interlock channel 4. A bit flag is set to one to indicate that the

interlock input has applied power, or zero to indicate that the interlock input has no

applied power.

Parameter Type Description

x void *

Transaction handle obtained from S26_SchedOpen().

LinkFlags u16 *

Pointer to a 16-bit application buffer that is to receive the link status flags. Each bit is

associated with a single port. For example, bit 4 is associated with port 4. A bit flag is

set to one to indicate active link (IOM connected), or zero to indicate inactive link.

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