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Thermocouple input block description (ti), 3 thermocouple input block description (ti) – Micromod MOD: 1800P - MOD 30ML Identity Module (Version 2) System, I/O and Communications Functions User Manual

Page 220

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Logic Functions - Book 1

ANALOG INPUT BLOCKS (VCI, TII, TI, RI, RTI, RTTI)

7-10

7.2.3

Thermocouple Input Block Description (TI)

This block is used to input a thermocouple value, compensate it and translate it to a scaled
temperature. It’s input is from a thermocouple module and it’s compensation input from a
RIM, or WRIM block or a floating point value specified in the thermocouple module block or
through the local CJC input. A functional block diagram of a thermocouple input block is
shown in Figure 7-7. The menus used to configure the block re shown in Figure 7-8 and 7-9.
The mnemonics, valid values, and data types for all fields that may be selected for display
and/or be used in making softwiring connections are listed in Table 7-3. Section 7.2.8 further
defines the input block configuration parameters.

+

+

Mult

Sum

RANKINE

Thermocouple Type

Input Module
Floating Point Count

CELSIUS

FAHRENHEIT

Input Module

No.

Filter Type

Temperature

Scale

Filter

Microvolt

Calculation

KELVIN

Output
Calibrate
- Zero

Filter

RIM, WRIM, CJIM or Local
Floating Point Count

Linearization

Scaled Counts

Deg C

Calculation

Inverse

Linearization

Sum

Cold Junction

Compensation

Input

Filter Time
(minutes)

Output
Calibrate
- Span

NONE

Value

LSP

BAD

GOOD

Bad Inputs

Accepted
(YES/NO)

Result Quality

State

(RUN, HOLD,

OFF, DEBUG)

Quality and

Error Check

Input Module Result Quality

Result

Quality Limit
- Bottom

Quality Limit
- Top

Range Check

Diagnostic

Group

(NONE, 1-7)

CERRU

CERRA

Set Quality

Bad on

Calculation

Error (Y/N)

Calculation

Error

(ENAB/SUPP)

NONE

AUTO

USER

CERRUQ

CERRAQ

Figure 7-7. Thermocouple Input Block (TI), Functional Block Diagram