Rockwell-automation 1336T Function Block Prog. Manual, Series A/B User Manual download pdf (Page 168)

6–6 Handling Exceptions — Faults and Warnings

1336 FORCE — 5.9 August 1995

BRAM Checksum Fault

If you receive a BRAM Checksum fault, the data in the BRAM has

been corrupted. You need to:

1. Perform a function block BRAM Init.

2. Perform a function block BRAM Store.

3. Download the execution list.

1 2 ... 163 164 165 166 167 168 169 170 171 172 173 ... 179 180

Function Block 1
Programming 1
Important User Information 2
Table of Contents 3
Function Block Library 4
Chapter 6 5
End of Table of Contents 6
Chapter 1 7
Chapter 2 7
PrefaceP–2 8
Preface P–3 9
Components 10
End of Preface 12
Getting Started 13
Getting Started Using 15
DriveBlockEditor 15
❒ Click on CLOSE 16
BLOCK ID# 17
Set Reset FF 18
1–7Getting Started 19
Multiplexer 20
1–9Getting Started 21
Rate Limiter 22
Step 6 — Check Links 23
Step 7 — Download the Program 23
Block Nodes 24
1–13Getting Started 25
Step 9 — Modify Node Values 26
Getting Started Using a PLC 27
1–16 Getting Started 28
Step 3 — Write Node Values 29
1–18 Getting Started 30
Step 4 — Write Links 31
1–20 Getting Started 32
Step 5 — View Node Values 33
Download to Drive 33
1–22 Getting Started 34
System Component Detail 35
2–2 System Component Detail 36
2–3System Component Detail 37
2–4 System Component Detail 38
Example Execution Lists 39
Linking Events 39
ADD2 SCALEInput Output 40
MULTIPLY 40
Downloading and 42
Compiling the Execution 42
Understanding Function 43
Block I/O Nodes 43
Node Data Types 46
Creating Links Between Nodes 47
2–14 System Component Detail 48
System Interactions 49
The Function Block Init 50
The Function Block Store 50
The Function Block Recall 51
Linear Parameter 51
BRAM Functions and Links 51
Power Up Sequence 53
Compiler Modes and Terminal 54
Operation Differences 54
Compiler Modes 54
Subsequent Compile Mode 55
DriveTools’ DriveBlockEditor 56
Operation 56
Graphic Programming 57
Terminal 57
PLC Block Transfer 57
Understanding Multiple 58
Execution List Copies 58
Task Status Service 59
Link Processing Faults 60
Performance Issues Involving 61
Link Processing Sequence 62
Double Word Function Block 64
Function Block Index 65
BLOCK TYPE 1 66
BLOCK TYPE 3 67
0 000001000000010 68
COMPHYST 69
BLOCK TYPE 5 71
0 000000000001110 72
BLOCK TYPE 6 73
BLOCK TYPE 7 75
BLOCK TYPE 23 77
BLOCK TYPE 25 80
BLOCK TYPE 8 81
BLOCK TYPE 2 83
BLOCK TYPE 16 84
FUNCTION 85
INTEGRATOR 88
BLOCK TYPE 12 92
BLOCK TYPE 15 93
BLOCK TYPE 13 94
MONOSTABLE 95
MULTIPLEXER 96
DEFINITION 99
A PLC place holder 99
BLOCK TYPE 17 100
(continued) 101
PULSE CNTR 104
RATE LIMITER 106
Example 1 107
BLOCK TYPE 20 108
BLOCK TYPE 22 110
BLOCK TYPE 27 111
BLOCK TYPE 11 112
BLOCK TYPE 26 113
UP/DWN CNTR 114
Block Transfer Services 117
Block Transfer Status 118
Application Status 120
Services: 120
Event List Checksum 121
3842 –– Message OK 124
–28926 –– Message Error 124
3841 –– Message OK 125
–28927 –– Message Error 125
Read Task Status 127
3845 –– Message OK 128
–28923 –– Message Error 128
Fault Status Read 129
3840 –– Message OK 130
–28928 –– Message Error 130
Program Limits 132
Information: 132
Application Control 135
Commands: 135
BRAM Functions 136
0F03 –– Message OK 137
8F03 –– Message Error 137
Download and Compile 139
Read Single Event 143
Clear/Process Links 145
3844 –– Message OK 146
–28924 –– Message Error 146
0F05 ––Message OK 147
8F05 –– Message Error 147
ID = block ID number 147
Read Block Value 148
0F05 –– Message OK 149
ID = the block ID number 149
Write Block Value 150
0F06 –– Message OK 151
8F06 –– Message Error 151
Write Block Link 153
Node Adjustment: 154
Read Full Node 155
Information 155
Read Node Link 160
Write Node Link 162
Warnings 163
Function Block Warnings 164
❒ the system fault queue 164
❒ the system warning queue 164
Accessing the System 165
Fault and Warning Queues 165
Handling Download 165
Service Errors 165
Handling Compile Faults 166
Link Processing Fault 167
I/O Node Limit Fault 167
Memory Limit Fault 167
BRAM Checksum Fault 168
Using the Task Status Service 169
Using the Fault Status 170
Clear Faults Command 171
Fault Codes 172
CUT ALONG DOTTED LINE 177
ALLEN-BRADLEY 178
Worldwide representation 180

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