
8-14
Precautions concerning format
-
The number of bytes comprising the MEWTOCOL-DAT command or message is converted to
hexadecimal data and specified for the “Data Size” parameter.
-
The “Station Number for Relay Station” and “Route Number for Relay Station” parameters should be
specified using the pertinent number. If there is only one relay station, the spaces for the second and
third relay stations will be filled in, closing the gap.
-
The station number of the station sending the command is specified for “Source for MEWTOCOL
station number”.
-
The station number of the station receiving the command is specified for “Destination for MEWTOCOL
station number”.
-
For the command, the same value, within a range of “01H to 03H”, should be specified for both the
“Hierarchy level (LEVEL)” and “Hierarchy depth (DEPTH)” parameters.
-
With the responses, “Hierarchy level (LEVEL)” is fixed at 00H.
-
"Destination (Source) MEWTOCOL station No." is specified by converting to hexadecimal data.
Key Point:
-
The route number is a number that is automatically allocated to differentiate units if multiple link-related
units are being used on the same backplane.
-
With the FP2, this applies to ET-LAN units, multi-wire link units, and computer communication units.
-
Route numbers proceed in sequential order (1, 2, 3 …), starting from the unit nearest the CPU unit.
-
I/O units other than link-related units and advanced-function units are not included in these “routes”.
Summary of Contents for FP2 ET-LAN
Page 11: ...Chapter 1 Unit Functions and Restrictions ...
Page 14: ...1 4 1 1 4 Connecting to a Network AFP2790 100BASE TX 10BASE T 10BASE5 AUI AFP27901 ...
Page 24: ...1 14 ...
Page 25: ...Chapter 2 Names and Functions of Parts ...
Page 29: ...Chapter 3 Connection for LAN Cable ...
Page 37: ...Chapter 4 Confirming the Design Contents ...
Page 49: ...Chapter 5 Initialization Processing and Termination Processing ...
Page 68: ...5 20 ...
Page 69: ...Chapter 6 Open Processing and Close Processing ...
Page 84: ...6 16 ...
Page 85: ...Chapter 7 Computer Link Function ...
Page 94: ...7 10 Program example ...
Page 97: ...7 13 Example of communication data Same hierarchy communication ...
Page 100: ...7 16 Example of communication data Other hierarchy communication ...
Page 101: ...7 17 Other hierarchy communication for MEWTOCOL COM ...
Page 102: ...7 18 ...
Page 103: ...Chapter 8 Data Transfer Function ...
Page 111: ...8 9 Program example ...
Page 114: ...8 12 Example of communication data Same hierarchy communication ...
Page 117: ...8 15 Example of communication data Other hierarchy communication ...
Page 119: ...8 17 Other hierarchy communication for MEWTOCOL DAT ...
Page 120: ...8 18 ...
Page 121: ...Chapter 9 Transparent Communication Function ...
Page 137: ...9 17 Program example ...
Page 143: ...Chapter 10 Auto Connection ...
Page 155: ...10 13 Case 1 Ladder program example ...
Page 169: ...Chapter 11 E mail Function ...
Page 200: ...11 32 ...
Page 201: ...Chapter 12 Error Log Function ...
Page 203: ...12 3 Latest log block area Log block reading processing area ...
Page 219: ...Chapter 13 Troubleshooting ...
Page 224: ...13 6 13 2 4 Troubleshooting Flowchart ...
Page 225: ...13 7 ...
Page 229: ...Chapter 14 MEWTOCOL Communication Procedure ...
Page 242: ...14 14 To write to an index register ...
Page 262: ...14 34 ...
Page 263: ...Chapter 15 Specifications ...
Page 292: ...15 30 15 6 ASCII Codes ...
Page 293: ...15 31 15 7 Dimensions AFP2790 FP2 ET1 AFP27901 FP2 ET2 ...
Page 294: ......
Page 295: ...Chapter 16 Sample Program ...
Page 298: ...16 4 ...
Page 299: ...16 5 ...
Page 300: ...16 6 ...
Page 301: ...16 7 ...
Page 304: ......
Page 305: ......