Table of Contents
Advertisement
Module Addressing
The following memory map of shows you how the output and input image tables
are defined for the RTD module.
SLC 5/0X
Data Files
Output
Scan
Slot e
Output Image
Input
Scan
Slot e
Input Image
(Class 1)
Channel Configuration
Once the module is installed, each channel can be configured to establish the way
the channel will operate. You configure the channel by entering bit values into
the configuration word using your programming software. Channels 0 through 3
on the NR4 are configured by entering bit values into output words 0 through 3
respectively. Output words 4 through 7 are used to further define the channel
configuration to allow you to choose a scaling format other than the module
default when using the proportional counts format. You can use words 4 and 5 to
define one user-set range. Use words 6 and 7 to define a second range. See the
table on pages 18 and 19 for a bit-by-bit examination of the configuration word.
SLC 500™ RTD/Resistance Input Module
Bit 15
RTD
Module
Image Table
Output
Image
Output Image
8 Words
Input Image
Input
8 Words
Image
Bit 15
Channel 0 Configuration Word
Channel 1 Configuration Word
Channel 2 Configuration Word
Channel 3 Configuration Word
User-set Lower Scale Limit Range 0
User-set Upper Scale Limit Range 0
User-set Lower Scale Limit Range 1
User-set Upper Scale Limit Range 1
Channel 0 Data Word
Channel 1 Data Word
Channel 2 Data Word
Channel 3 Data Word
Channel 0 Status Word
Channel 1 Status Word
Channel 2 Status Word
Channel 3 Status Word
17
Bit 0
Address
Word 0
O:e.0
Word 1
O:e.1
Word 2
O:e.2
Word 3
O:e.3
Word 4
O:e.4
Word 5
O:e.5
Word 6
O:e.6
Word 7
O:e.7
Address
Word 0
I:e.0
Word 1
I:e.1
I:e.2
Word 2
I:e.3
Word 3
I:e.4
Word 4
I:e.5
Word 5
I:e.6
Word 6
I:e.7
Word 7
Bit 0
Publication 1746-5.17
Hide quick links:
Advertisement
Table of Contents
