Programming manual M238 | 3 MB - BERGER - POSITEC

More documents

Recommendations

Info

Controller States and Behaviors Controller States and Output Behavior Introduction The Modicon <strong>M238</strong> Logic Controller defines output behavior in response to commands and system events in a way that allows for greater flexibility. An understanding of this behavior is necessary before discussing the commands and events that affect controller states. For example, typical controllers define only two options for output behavior in stop: fallback to default value or keep current value. The possible output behaviors and the controller states to which they apply are: Managed by Application Program Keep Current Values Set All Outputs to Default Initialization Values Output Forcing Managed by Application Program Your application program manages outputs normally. This applies in the RUNNING and RUNNING with External Error states. Keep Current Values You can select this option by choosing Keep current values in the Behaviour for outputs in Stop dropdown menu of the PLC settings sub-tab of the Controller Editor. To access the Controller Editor, right-click on the controller in the device tree and select Edit Object. This output behavior applies in the STOPPED and HALT controller states. Outputs are set to and maintained in their current state, although the details of the output behavior varies greatly depending on the setting of the Update IO while in stop option and the actions commanded via configured fieldbuses. Refer to Controller States Description (see page 49) for more details on these variations. Set All Outputs to Default You can select this option by choosing Set all outputs to default in the Behaviour for outputs in Stop dropdown menu of the PLC settings sub-tab of the Controller Editor. To access the Controller Editor, right-click on the controller in the device tree and select Edit Object. This output behavior applies in the STOPPED and HALT controller states. Outputs are set to and maintained in their current state, although the details of the output behavior varies greatly depending on the setting of the Update IO while in stop option and the actions commanded via configured fieldbuses. Refer to Controller States Description (see page 49) for more details on these variations. 54 EIO0000000384 04/2012
Controller States and Behaviors Initialization Values This output state applies in the BOOTING, EMPTY (following power cycle with no boot application or after the detection of a system error), and INVALID_OS states. Output Forcing In the initialization state, analog, transistor and relay outputs assume the following values: For an analog output : Z (High Impedance) For a fast transistor output: Z (High Impedance) For a regular transistor output: 0 Vdc For a relay output: Open The controller allows you to force the state of selected outputs to a defined value for the purposes of system testing, commissioning and maintenance. You are only able to force the value of an output while your controller is connected to SoMachine. To do so you use the Force Values command in the Debug/Watch menu. Output forcing overrides all other commands to an output irrespective of the task programming that is being executed. When you logout of SoMachine when output forcing has been defined, you are presented with the option to retain output forcing settings. If you select this option, the output forcing continues to control the state of the selected outputs until you download an application or use one of the Reset commands. When the option Update IO while in stop, if supported by your controller, is checked (default state), the forced outputs keep the forcing value even when the logic controller is in STOP. Output Forcing Considerations The output you wish to force must be contained in a task that is currently being executed by the controller. Forcing outputs in unexecuted tasks, or in tasks whose execution is delayed either by priorities or events will have no effect on the output. However, once the task that had been delayed is executed, the forcing will take effect at that time. Depending on task execution, the forcing could impact your application in ways that may not be obvious to you. For example, an event task could turn on an output. Later, you may attempt to turn off that output but the event is not being triggered at the time. This would have the effect of the forcing apparently being ignored. Further, at a later time, the event could trigger the task at which point the forcing would take effect. EIO0000000384 04/2012 55
Page 1 and 2:
EIO0000000384.04 Modicon M238 Logic
Page 3 and 4: Table of Contents Safety Informatio
Page 5 and 6: Chapter 16 Loader Device Accessory
Page 7 and 8: Important Information NOTICE Safety
Page 9 and 10: At a Glance Document Scope Validity
Page 11 and 12: Product Related Information User Co
Page 13 and 14: Modicon M238 Logic Controller M238
Page 15 and 16: Modicon M238 Logic Controller How t
Page 17 and 18: Device Tree How to Configure the Co
Page 19 and 20: Libraries Introduction Modicon M238
Page 21 and 22: Modicon M238 Logic Controller Suppo
Page 23 and 24: Introduction Modicon M238 Logic Con
Page 25 and 26: Customer Area 1000 kbytes TM238LDD2
Page 27 and 28: System Variables Library Sizes Memo
Page 29 and 30: Memory Mapping Relocation Table Edi
Page 33 and 34: Task Configuration Screen Tasks Scr
Page 35 and 36: Task Types Introduction Cyclic Task
Page 37 and 38: Tasks External Event Task This type
Page 39 and 40: Task Priorities Introduction Tasks
Page 41 and 42: Default Task Configuration Tasks De
Page 45 and 46: Note 1 Note 2 Note 3 Note 4 Note 5a
Page 47 and 48: Note 8 Note 9 Controller States and
Page 49 and 50: 7.2 Controller States Description C
Page 51 and 52: Controller States and Behaviors Tas
Page 53: 7.3 State Transitions and System Ev
Page 57 and 58: Commanding State Transitions Run Co
Page 59 and 60: Reset Cold Reset Origin Controller
Page 61 and 62: Controller States and Behaviors 9.
Page 63 and 64: Error Detection, Types, and Managem
Page 67 and 68: Tab Descriptions Controller Device
Page 69 and 70: PLC Settings Overview The figure be
Page 71 and 72: Services Services Tab The Services
Page 73 and 74: Overview Modicon M238 Logic Control
Page 75 and 76: M238 Embedded Functions HSC Configu
Page 77 and 78: M238 Embedded Functions I/O Configu
Page 79 and 80: Configuration Parameters For each d
Page 81 and 82: M238 Embedded Functions PTO_PWM Con
Page 83 and 84: Modicon M238 Logic Controller Expan
Page 85 and 86: Modicon M238 Logic Controller CANop
Page 87 and 88: CANopen Configuration CANopen Opera
Page 89 and 90: Overview Modicon M238 Logic Control
Page 91 and 92: General Functional Description AS-I
Page 93 and 94: The following table describes the d
Page 95 and 96: Add an AS-Interface Master Module I
Page 97 and 98: Configure an AS-Interface Master In
Page 99 and 100: Tab Name Configuration Window Descr
Page 101 and 102: Step Action AS-Interface Configurat
Page 103 and 104: AS-Interface Configuration Add a Sl
Page 105 and 106:
Step Action AS-Interface Configurat
Page 107 and 108:
Step Action AS-Interface Configurat
Page 109 and 110:
Configure an AS-Interface Slave Int
Page 111 and 112:
AS-Interface Configuration The tabl
Page 113 and 114:
Modification of Slave Address At a
Page 115 and 116:
Step Description AS-Interface Confi
Page 117 and 118:
AS-Interface Configuration Diagnost
Page 119 and 120:
Diagnostic of AS-Interface Slave De
Page 121 and 122:
Configuration of a Replaced AS-Inte
Page 123 and 124:
Introduction Modicon M238 Logic Con
Page 125 and 126:
Step Action 3 Click the Physical Se
Page 127 and 128:
Serial Line Configuration The follo
Page 129 and 130:
Configure the Manager To configure
Page 131 and 132:
SoMachine Network Manager Introduct
Page 133 and 134:
Modbus IOScanner Introduction Seria
Page 135 and 136:
Adding a Device on the Modbus IOSca
Page 137 and 138:
Step Action To configure the Modbus
Page 139 and 140:
Step Action To configure your Modbu
Page 141 and 142:
Serial Line Configuration These scr
Page 143 and 144:
Modbus Manager Introduction Serial
Page 145 and 146:
Modbus Master Modbus Slave Serial L
Page 147 and 148:
Adding a Modem Serial Line Configur
Page 149 and 150:
Modicon M238 Logic Controller Ether
Page 151 and 152:
Step Action Comment 3 Select 499TWD
Page 153 and 154:
Step Action Comment 3 Enter the val
Page 155 and 156:
Introduction Modicon M238 Logic Con
Page 157 and 158:
M238 - Connecting the Modicon M238
Page 159 and 160:
Active Path of the Controller Intro
Page 161 and 162:
Overview Modicon M238 Logic Control
Page 163 and 164:
Loader Device AccessoryDescription
Page 165 and 166:
Physical Description Overview 1 Bat
Page 167 and 168:
LED Status and Diagnostic LED Statu
Page 169 and 170:
Firmware and SoMachine Software Com
Page 171 and 172:
Loader Device Accessory 16.2 Upload
Page 173 and 174:
Upload From the Controller to the U
Page 175 and 176:
Interrupting a download can erase t
Page 177 and 178:
16.4 Other Functionalities What’s
Page 179 and 180:
Update the Firmware of the Loader D
Page 181 and 182:
Page 183 and 184:
Updating the firmware requires one
Page 185 and 186:
Updating Through USB Introduction U
Page 187 and 188:
Launching the Exec Loader Wizard In
Page 189 and 190:
Step 2 - Settings Selecting Setting
Page 191 and 192:
Step 3 - File and Device Exec Prope
Page 193 and 194:
Step 4 - Transfer Progress Overview
Page 195 and 196:
Modicon M238 Logic Controller Modic
Page 197 and 198:
Check Action Resolution: Modicon M2
Page 199 and 200:
Modicon M238 Logic Controller - Tro
Page 201 and 202:
Modicon M238 Logic Controller - Tro
Page 203 and 204:
Frequently Asked Questions Modicon
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
ASI_CmdSetAutoAddressing AS-Interfa
Page 211 and 212:
ASI_CmdSetDataExchange Description
Page 213 and 214:
ASI_CmdSetOfflineMode Description G
Page 215 and 216:
ASI_MasterStatusCheck Description G
Page 217 and 218:
ASI_SlaveAddressChange Description
Page 219 and 220:
ERROR: Detected Error Codes The ERR
Page 221 and 222:
The following table describes the o
Page 223 and 224:
Output Type Comment LAS ARRAY[0..7]
Page 225 and 226:
The following table describes the o
Page 227 and 228:
Page 229 and 230:
How to Use a Function or a Function
Page 231 and 232:
Step Action Function and Function B
Page 233 and 234:
Function and Function Block Represe
Page 235 and 236:
Page 237 and 238:
SetSerialConf: Change the Serial Li
Page 239 and 240:
Functions to get/set serial line co
Page 241 and 242:
Modicon M238 Logic Controller M238
Page 243 and 244:
application source ARP ASCII BOOTP
Page 245 and 246:
controller cyclic task data log DHC
Page 247 and 248:
Flash Memory FTP function block Glo
Page 249 and 250:
LD located variable MAC address MAS
Page 251 and 252:
periodic execution persistent data
Page 253 and 254:
SDO sequential function chart See S
Page 255 and 256:
Modicon M238 Logic Controller Index
show all

Programming manual M238 | 3 MB - BERGER - POSITEC

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?