Duplex protocol (continued), Field 6: message attributes – Rockwell Automation 2706-F11J_F11JC_F21J_F21JC DL50 INSTALLATION MANUAL User Manual

Page 60

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Chapter 5

Serial Communications

5–10

Field 6: Message Attributes

This three byte field specifies how a message is displayed. The three bytes
specify:

Display Mode

Display Speed

Byte 1

Text Height

Relay Control

Byte 2

Byte 3

Reserved

Display Mode / Speed The first byte of the Message Attributes field
specifies display mode / display speed. The first five bits indicate display
mode and the last three bits indicate the display speed.

Bit

7

Bit

6

Bit

5

Bit

4

Bit

3

Bit

2

Bit

1

Bit

0

Display Speed

Display Mode

Set Bits 5 and 6
using Table 5.D

Set Bits 0 through 4
using Table 5.H

Always
Set to 1

Table 5.H
Bits 0 through 4 of the Message Attribute 1st Byte

Function

Bits 4

z 0

Decimal Value

Hold

0 0 0 0 0

0

Roll Up

0 0 0 0 1

1

Roll Down

0 0 0 1 0

2

Roll Left

0 0 0 1 1

3

Roll Right

0 0 1 0 0

4

Roll In

0 0 1 0 1

5

Roll Out

0 0 1 1 0

6

Rotate

0 0 1 1 1

7

Wipe Up

0 1 0 0 0

8

Wipe Down

0 1 0 0 1

9

Wipe Left

0 1 0 1 0

10

Wipe Right

0 1 0 1 1

11

Wipe In

0 1 1 0 0

12

Wipe Out

0 1 1 0 1

13

Twinkle

0 1 1 1 0

14

Sparkle

0 1 1 1 1

15

Snow

1 0 0 0 0

16

Interlock

1 0 0 0 1

17

Switch

1 0 0 1 0

18

Slide Across

1 0 0 1 1

19

Spray On

1 0 1 0 0

20

Starburst On

1 0 1 0 1

21

Scroll

1 0 1 1 0

22

Reserved

1 0 1 1 1

! 1 1 1 1

23

! 31

Refer to Appendix A for descriptions of these attributes.
Add decimal values for all bits within a byte to determine value of the entire byte.

Duplex Protocol (continued)

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