Chapter 4
Block Reference
FieldPoint FP-3000 User Manual
4-4
©
National Instruments Corporation
LOG (FieldPoint Log Block) (FP-3000 Specific)
The LOG block contains a log of error conditions and events detected by
the device as it operates.
STAT (FieldPoint Statistics Block) (FP-3000 Specific)
The STAT block contains a set of parameters that can be used to examine
how the device is performing. It contains statistics describing the
performance of local function blocks and the network interface.
Function Blocks and FieldPoint Modules
The FP-3000 supports a wide variety of I/O channels, each with different
types of configuration information. For example, a thermocouple channel
includes parameters for thermocouple type and has ranges for different
temperatures; a current loop channel includes parameters for filter
frequency and has a different group of available ranges to chose from.
Because of these differences in parameters, the FP-3000 has a block
specific to each type of channel it supports. To use a thermocouple
connected to an I/O channel on an FP-TC-120 module, the FP-3000
provides a FP-TC-120 AI Block. This block is a standard Analog Input
block augmented with parameters specific to the thermocouple channel on
the FP-TC-120.
Binary Open/Close
(
BINARY_OP/BINARY_CL
)
BINARY_OP
only functions when
ENABLE_OP
has a value of
Discrete_State_1
.
BINARY_CL
only functions when
ENABLE_CL
has a value of
Discrete_State_1
. If both
BINARY_OP
and
BINARY_CL
are set and enabled, neither one takes effect.
Operator Command
(
OP_CMD_CXO
)
OP_CMD_CXO
is a contained bit string parameter that has a bit for
Open and a bit for Close. Open only functions when
ENABLE_OP
has
a value of
Discrete_State_1
. Close only functions when
ENABLE_CL
has a value of
Discrete_State_1
. If both Open and
Close are set and enabled, neither one takes effect.
Table 4-1.
CDO Block Interlock Priorities (Continued)
Input
(Descending Priority)
Notes