Output state byte -18 counter status bytes -18, Output state byte, Counter status bytes – Rockwell Automation 1746-HSCE2 Multi-Channel High Speed Counter Module User Manual

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Publication 1746-UM002B-EN-P - August 2004

2-18 Module Operation

OP MODE: Operating Mode Bits

The module uses these two bits to tell the processor what mode it is
in. In class 1, the data value that an input word contains changes
based on the operating mode.

Table 2.2 Mode Bit Settings

Output State Byte

These bits correspond to the real or virtual state of the outputs. Bits 00
through 03 represent real outputs. Bits 04 through 07 represent virtual
outputs.

Counter Status Bytes

Each counter has an associated status byte. The format of the byte
depends on the module’s class of operation as shown below.

Figure 2.14 Class 1 Counter Status Byte Format

Figure 2.15 Class 4 Counter Status Byte Format

Bit 09

Bit 08

Mode

0

0

Reserved

0

1

Mode 1

1

0

Mode 2

1

1

Mode 3

15

14

13

12

11

10

09

08

07

06

05

04

03

02

01

00

C/R

0

ROvF

RUdF

COvF

CUdF

CState

15

14

13

12

11

10

09

08

07

06

05

04

03

02

01

00

0

0

ROvF

RUdF

COvF

CUdF

CState

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