A - 22
11.2.1 Applicable CPU modules ····················································································· 11 - 11
11.2.2 Precautions for using I/O modules and intelligent function modules ······························ 11 - 13
11.3 Precautions for System Configuration··········································································· 11 - 14
CHAPTER 12 CONCEPT OF MULTIPLE CPU SYSTEM 12 - 1 to 12 - 24
12.1 Mounting Positions of CPU Modules ··············································································12 - 1
12.2 CPU No. of CPU Module ·····························································································12 - 9
12.3 I/O Number Assignment ···························································································· 12 - 11
12.3.1 I/O number assignment for the module ··································································· 12 - 11
12.3.2 I/O number of each CPU module··········································································· 12 - 12
12.4 Access Ranges Between a CPU Module and Other Modules ············································ 12 - 13
12.4.1 Access to controlled modules ··············································································· 12 - 13
12.4.2 Access to non-controlled modules ········································································· 12 - 13
12.5 Access to Link Devices ····························································································· 12 - 20
12.6 Resetting CPU Modules ···························································································· 12 - 21
12.7 When a CPU Module Stop Error Occurs ······································································· 12 - 22
CHAPTER 13 COMMUNICATIONS BETWEEN CPU MODULES 13 - 1 to 13 - 49
13.1 Data Communications by MELSEC Data Link Functions ····················································13 - 2
13.2 Interrupt from Another CPU··························································································13 - 3
13.2.1 Multiple CPU synchronous interrupt function···························································· 13 - 11
13.3 Data Communications Using CPU Shared Memory ························································· 13 - 12
13.3.1 CPU shared memory structure·············································································· 13 - 14
13.3.2 Data communications using auto refresh································································· 13 - 17
13.3.3 Communication using the multiple CPU high speed transmission area and auto refresh ··· 13 - 24
13.3.4 Data communications without using auto refresh ······················································ 13 - 32
13.4 Programmable Controller Remote Control Function ························································ 13 - 42
13.5 Sequence Program Control Function············································································ 13 - 43
13.6 Issuing an Interrupt to Another CPU············································································· 13 - 44
13.7 Motion CPU Control Instruction ··················································································· 13 - 46
13.8 Motion CPU Device Access························································································ 13 - 47
13.9 Multiple CPU Synchronized Boot-Up ············································································ 13 - 48
CHAPTER 14 PARAMETERS ADDED FOR MULTIPLE CPU SYSTEMS 14 - 1 to 14 - 7
14.1 Parameter List···········································································································14 - 1
14.1.1 Setting the number of CPUs (required) ·····································································14 - 4
14.1.2 Operation mode setting (optional)············································································14 - 6
14.1.3 Online module change (optional) ·············································································14 - 6
14.1.4 I/O sharing when using Multiple CPUs (optional) ························································14 - 6
14.1.5 Communication area setting (refresh setting) (optional)················································14 - 6
14.1.6 Control CPU settings (required) ··············································································14 - 7
14.1.7 Multiple CPU synchronous startup setting (optional)····················································14 - 7
14.1.8 Multiple CPU high speed transmission area setting (required) ·······································14 - 7
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