Rockwell-automation 1794-ASB/E Remote I/O Adapter Module User Manual Instrukcja Użytkownika Pobierz pdf (Strona 49)

3–15Communicating with FLEX I/O Modules

Publication 1794ĆUM009D-EN-P - April 2004

Use complementary 32 point addressing when:

• you use 32 point modules in your system

• you need full FLEX I/O module functionality, such as delay time

selection on input modules, fuse-blown indication on the

1794-OB8EP, etc.

• using combination modules, such as the 1794-IB16XOB16 16

in/16 out module

In complementary mode, each module position equals two I/O

groups – 2 words of input image and 2 words of output image.

00071017 00071017

I/O Group

ILL, OLL = Bits 0 thru 7 for input and output words of 32 point modules

ILH, OLH = Bits 8 thru 15 for input and output words of 32 point modules

IL, OL = Bits 0 thru 7 for input and output words for 16 and 8 point modules

IH, OH = Bits 8 thru 15 for input and output words for 16 point modules

M0ĆILH

M0ĆIHH

M0ĆOLL

M0ĆOHL

M2ĆOLH

M0ĆOLH

M0ĆOHH

Complementary 32 Addressing Example - 16 modules = 2 logical racks, N, (N+1), NC and (N + 1)C

M3ĆIHH

M2ĆOHL

M3ĆOLL

M3ĆOHL

M3ĆOLH

M3ĆOHH

M1ĆILH M1ĆOLLM1ĆOLLM1ĆOLHM1ĆOLH

M1ĆOHLM1ĆOHLM1ĆOHHM1ĆOHH

M1ĆIHHM1ĆIHH

M3ĆILHM3ĆILH

Any module in any slot in primary chassis. Complement of primary

chassis module in complementary chassis slot.

Eight terminal bases per adapter (maximum)

1 module in primary chassis, 1 module in complementary

chassis represents 2 I/O groups.

IHL, OHL = Bits 16 thru 23 for input and output words of 32 point modules

IHH, OHH = Bits 24 thru 32 for input and output words of 32 point modules

M0ĆILLM0ĆILL

M0ĆIHLM0ĆIHL

M3ĆIHLM3ĆIHL

M1ĆILLM1ĆILL

M1ĆIHLM1ĆIHL

M3ĆILLM3ĆILL

M2ĆOLHM2ĆOLH

M2ĆOHHM2ĆOHH

I/O GroupI/O Group

00071017 00071017

I/O Group

Input Image Table for Rack N and NC Output Image Table for Rack N and NC

M0ĆILH

M0ĆIHH

CM0ĆOLL

CM0ĆOHL

CM2ĆOL

CM0ĆOLH

CM0ĆOHH

CM3ĆIHH

M3ĆOLL

M3ĆOHL

M3ĆOLH

M3ĆOHH

CM1ĆILH

CM1ĆIHH

CM3ĆILH

M0ĆILL

CM3ĆIHL

CM1ĆILL

CM1ĆIHL

CM3ĆILL

CM2ĆOH

M1ĆOLL

M1ĆOHL

M1ĆOLH

M1ĆOHH

M3ĆIHH

M1ĆILH

M3ĆILHM3ĆILH

M4ĆMSB

M3ĆIHLM3ĆIHL

M1ĆILLM1ĆILL

M3ĆILLM3ĆILL

M2ĆILLM2ĆILL

00071017

I/O Group

Input Image Table for Rack N+1 and (N+1)C

M7ĆIHH

M7ĆILH

M7ĆIHL

M7ĆILL

M0 M1 M2 M3 M4 M5 M6 M7

ASB/E

CĆM0 CĆM1 CĆM2 CĆM3 CĆM4 CĆM5 CĆM6 CĆM7

ASB/E

Primary

Comp.

Group0&1

Legal Module Placement in 32Ćpoint Complementary

Input 32 Output 32 Empty

Output 32

Output 8 Input 32Analog AnalogOutput 32

Output 32

Input 32 Output 16

Input 32

Empty

Analog Input 8

IHH IHL

ILH ILL

OHH

OHL

OLH OLL IHH IHLILH ILL

OHH

OHL

OLH OLL OL

OH OL

OHH

OHL

OLH OLL OL IHH IHL

ILH ILL

OHH

OHL

OLH OLLIHH IHLILH ILL

M3ĆIHH

M5ĆMCB

M3ĆILHM3ĆILH

CM5ĆMCB

M3ĆIHLM3ĆIHL

M1ĆIHLM1ĆIHL

M3ĆILLM3ĆILL

M2ĆILLM2ĆILL

00071017

I/O Group

Output Image Table for Rack N+1 and (N+1)C

CM7ĆOHH

CM7ĆOLH

CM7ĆOHL

CM7ĆOLL

MSB

MCB

MSB

MCB

Any input module complemented by an output module or empty slot.

Any output module complemented by an input module or empty slot.

Any block transfer module complemented with a block transfer

module or empty slot.

An empty slot complemented by an empty slot, input

or output module

Note: Shaded areas represent unavailable data

CM5ĆMSB

M5ĆMSB

CM6ĆIL M6ĆOL

M4ĆMCB

Group2&3

Group4&5 Group6&7

Group0&1

Group2&3

Group4&5 Group6&7

Rack N Rack (N + 1)

Rack NC Rack (N + 1)C

MSB

MCB

Complementary - 32

Addressing

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 71 72

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