GE-Fanuc IC660BBA023 DCS I/O MODULE

Thermocouple Input Blocks are primarily used for monitoring temperature, with standard thermocouple types connected to the inputs. They can also be used for measuring low-level voltage input signals.

Two Thermocouple blocks are available:

115 VAC/125 VDC Thermocouple block (IC66*BBA103)

24/48 VDC Thermocouple block (IC66*BBA023). They are the same except for the power supply.

 

IC660BBA023 Features：

A Thermocouple block has six input circuits, in three isolated groups. +/-10 V common mode voltage (maximum) allowed between 2 points in a group. Each group has two thermocouple input circuits and two remote cold junction compensation inputs. Group-to-group isolation is 300 volts.

Each input can interface to type J, K, T, E, B, R, S, and N (#14 AWG Nicrosil vs. Nisil) thermocouples. The block provides cold junction compensation for all thermocouple input measurements.

Each channel can be configured to use an internal sensor, an external sensor, or a user-defined value ( in the range of +/- 327.67mV) for cold-junction compensation. An external signal from a remote junction can be either a voltage (XJV) or a current (XJI) analog of temperature. The XJV input is scaled for 1.0mV per degree Centigrade and the XJI input is scaled for 1.0 μA per degree Kelvin. After compensation, the block linearizes each thermocouple input measurement according to the NBS monograph for the thermocouple type in use.

Each input measurement can be adjusted up to +/-100.0 degrees C or +/-100.0 degrees F for greatest accuracy.

An output is provided to drive a Bus Switching Module (version IC66*BSM021 only).

 

 

Thermocouple blocks perform the following diagnostics:

Internal fault detection
, Open Wire detection
, Overrange and underrange input indication
, High and low input alarms

 

Catalog Numbers：

115 VAC/125 VDC Thermocouple Block	IC66*BBA103
Terminal Assembly	IC66*TBA103
Electronics Assembly	IC66*EBA103
24/48 VDC Thermocouple Block	IC66*BBA023
Terminal Assembly	IC66*TBA023
Electronics Assembly	IC66*EBA023

 

Thermocouple blocks are compatible with:

For an IC697 series PLC, the CPU must be rel. 2 (IC697CPU731 or 771) or later. The Bus Controller must also be: rel 2 (IC697BEM731) or later. The programming software must be rel 2.02 or later.

For an IC600 series PLC, the CPU must be rev. 105 or later. For an IC600 series Plus PLC, the CPU must be rev. 110 or later. The Bus Controller must be model IC66*CBB902 or 903. The programming software must be rel. 4.02 or later.

For an IC550 series PLC, the CPU must be rev. 3.0 or later. The programming software must be rel. 2.01 or later. Hand-held Monitor model IC66*HHM501D (version 3.5) or later can be used with these blocks. However, HHM version 3.7 or later is required for full configuration capability. If a Bus Switching Module is connected directly to the block, it must be the 24/48 VDC version (IC66*BSM021).

 

The block's Unit OK and I/O Enabled LEDs show its operating status:

Unit OK	I/O Enabled	Meaning
ON	ON	Block functioning, CPU communicating
ON	OFF	Block functioning No CPU communications for 3 bus scans
ON	Blinking	Block functioning, Circuit forced
Blinking	ON	Circuit fault, CPU communicating
Blinking	OFF	Circuit fault No CPU communications for 3 bus scans
Alternate Blinking		Circuit fault, Circuit forced
Synchronous Blinking		No CPU communications - block number conflict
OFF	Blinking	Electronics/Terminal Assembly mismatch
OFF	OFF	No block power, orthe  block is faulty