INSTALLATION MANUAL User Manual

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
Function➀ Bits 4 z 0 Decimal Value➁
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
➀ Refer to Appendix A for descriptions of these attributes.
➁ Add decimal values for all bits within a byte to determine value of the entire byte.
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