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Publication 2706-UM016A-EN-P - June 2002
InView Protocol
9-17
Figure 9.18 Example of a Target Holding Register
Target holding register 40102 – 40001 = 101 (0x65)
Format for the following sections will be the use of a Query/Response
or a Transmission. Each section will show the complete transmission
and response (if applicable). In some examples, there are multiple
steps that are needed to complete the function requested. Within
these steps, there are pause or delay times that must be used
in-between each step.
The data that is sent will be ASCII information and the CR and LF will
represent 0x0d and 0x0a respectively. The Beg of Frame (:) will
represent (0x3a).
Heartbeat Function
The Heartbeat Function, when enabled, will allow the display to
determine if it is no longer on the network or if the host device is not
functioning properly (not sending data or a heartbeat). Should the
display not see any serial activity (valid or invalid) within 3 seconds,
an error message “No Network Activity” will be displayed. The
Heartbeat can either be enabled or disabled via protocol or software.
Factory Default:
DISABLED
.
Enabling the Heartbeat Function
The displays will be shipped with the Heartbeat disabled. Should the
Heartbeat function be required, the following string of information
will enable the display to look for a Heartbeat or serial activity.
Transmission:
Figure 9.19 Transmission for Enabling the Heartbeat Function
Beg of
Frame
ADDR
FUNC
H.O.
ADDR
L.O.
ADDR
DATA
LRC
Error
EOF
Ready to
rec. resp
:
FF
06
00
65
FFFF
98
CR
LF
Beg of
Frame
ADDR
FUNC
H.O.
ADDR
L.O.
ADDR
DATA
EOF
Ready to rec. resp
:
FF
01
00
64
^AZFF^BE01^D9C CR
LF
Summary of Contents for InView Marquee 2706-P42
Page 6: ...Publication 2706 UM016A EN P June 2002 Table of Contents iv...
Page 32: ...Publication 2706 UM016A EN P June 2002 1 26 InView Marquee Message Display Installation...
Page 36: ...Publication 2706 UM016A EN P June 2002 2 4 InView System Connectivity...
Page 62: ...Publication 2706 UM016 A EN P June 2002 4 20 DF1 Point to Point Communication...
Page 88: ...Publication 2706 UM016A EN P June 2002 5 26 EtherNet IP Communications with Dual ENI...
Page 103: ...Publication 2706 UM016A EN P June 2002 EtherNet IP Communications 6 15 Allen Bradley Spares...
Page 104: ...Publication 2706 UM016A EN P June 2002 6 16 EtherNet IP Communications...
Page 128: ...Publication 2706 UM016A EN P June 2002 7 24 DeviceNet Communications with Dual DNI...
Page 136: ...Publication 2706 UM016A EN P June 2002 8 8 DeviceNet Communications...
Page 204: ...Publication 2706 UM016A EN P June 2002 A 2 Technical Specifications...
Page 206: ...Publication 2706 UM016A EN P June 2002 B 2 Temperature Protection in NEMA Rated Enclosures...
Page 208: ...Publication 2706 UM016A EN P June 2002 C 2 Catalog Number Explanation...
Page 211: ...Allen Bradley Spares...