MVME167-004A工控备件机器人模块
Hidrom 1 1756HP-TIME冗余控制器实施V1.00.02第页简介WALLLOCK纪律设置系统值（SSV）O RSLOGIX V16 O RSLOGX V19精确时间协议简介本文件用于描述冗余ControlLogix系统中时间同步（使用1756HPTIME模块）的实现。目前，用户在实施冗余控制系统时可以使用RSLogix v16或RSLogix v19（其中v19支持精确时间协议或PTP）。将对同步控制器以及事件序列（SOE）解决方案进行说明。如果用户有任何问题或疑问，请发送电子邮件：HUtech@hiprom.comU罗克韦尔自动化Hidrom 3 WALLCLOCK DISCIPLINE设置系统值（SSV）将使用以下冗余PLC架构作为示例：RSLogix v16用户可以通过向其写入当前UTC值来设置墙上时钟。由于CPU与1756HP-TIME模块位于同一机架中，UTC偏移不能用于调整时钟，因为本地和远程机架的CST不同。PPS位可用于每秒调节时钟，如下所示：因此，在每秒钟开始时，SSV指令将使用从1756HP-TIME模块接收的UTC值调节时钟。TE：挂钟时间只能与远程机架的RPI+1756HP-time模块的RPI一样精确。例如，如果远程机架RPI为20ms，而1756HP-TIME模块的RPI为10ms，则最大挂钟时间误差将为30ms。RSLogix v19如果用户使用CIPSync（精确时间协议–PTP），则RSLogix v16方法也适用于RSLogix V109。罗克韦尔自动化Hidrom 4精确时间协议（PTP）将使用以下冗余PLC架构作为示例：RSLogix v9使用CIPSync时，用户必须启用3个选项。这将允许1756HP-TIME模块在不需要任何阶梯的情况下同步控制器（注意，使用PTP时时间精度更好）：1。将1756HP-TIME模块设置为在配置图像UDT或AOP中输出PTP：罗克韦尔自动化Hidrom 5 TE：如果用户使用1756HP_TIME模块的主要固件版本2，则可以从附加配置文件（AOP）中设置所有参数，并且图像结构化时需要UDT。2.设置以太网桥模块（EN2 EN2TR等）以支持CIPSync:3.设置Logix控制器以启用时间同步：罗克韦尔自动化Hidrom 6以太网桥将用作边界时钟（以太网上的PTP从属设备和控制总线上的PTP-主设备）。因此，Logix控制器将与以太网桥同步，而以太网桥又将与1756HP-TIME模块同步。Logix控制器与TIME模块同步后，用户可以通过选择控制器AOP的DateTime选项卡中的Advanced（高级）按钮来确认时间精度：Rockwell Automation Hidrom 7 SEQUENCE of EVENTS（SOE）CST UTC以下冗余PLC架构将用作示例：RSLogix v16在冗余系统中执行事件序列（SOE为每个机架添加1756HP-TIME模块，以便为每个SOE模块提供CST和UTC对。
Rockwell Automation Hiprom 1 1756HP-TIME REDUNDANT CONTROLLER IMPLEMENTATION V1.00.02 Section Page INTRODUCTION WALLCLOCK DISCIPLINE SET SYSTEM VALUE (SSV) O RSLOGIX V16 O RSLOGIX V19 PRECISION TIME PROTOCOL (PTP) O RSLOGIX V19 SEQUENCE OF EVENTS (SOE) CST UTC O RSLOGIX V16 O RSLOGIX V19 PRECISION TIME PROTOCOL (PTP) O RSLOGIX V19 2 3 3 3 3 4 4 7 7 7 9 9 9 Rockwell Automation Hiprom 2 INTRODUCTION This document serves to describe the implementation of time synchronization (using the 1756HPTIME module) in a redundant ControlLogix system. Currently the user can either use RSLogix v16 or RSLogix v19 when implementing the redundant control system (where v19 supports the Precision Time Protocol or PTP). An explanation will be given on synchronizing controllers as well as doing sequence of events (SOE) solutions. If the user has any questions or queries please email: HUtech@hiprom.comU Rockwell Automation Hiprom 3 WALLCLOCK DISCIPLINE Set System Value (SSV) The following redundant PLC architecture will be used as an example: RSLogix v16 The user can set the wallclock by writing the current UTC value to it. Because the CPU is t in the same rack as the 1756HP-TIME module the UTC offset cant be used to discipline the clock because the CST of the local and remote racks are different. The PPS bit can be used to discipline the clock every second as shown below: Thus at the beginning of every second the SSV instruction will discipline the clock by using the UTC value received from the 1756HP-TIME module. TE: The wallclock time will only be as accurate as the RPI of the remote rack + the RPI of the 1756HP-TIME module. For example if the remote rack RPI is 20ms and the 1756HP-TIME module’s RPI is 10ms the max wallclock time error will be 30ms. RSLogix v19 If the user is t using CIPSync (Precision Time Protocol – PTP) then the RSLogix v16 method will also apply to RSLogix v19. Rockwell Automation Hiprom 4 Precision Time Protocol (PTP) The following redundant PLC architecture will be used as an example: RSLogix v19 When using CIPSync the user must enable 3 options. This will allow the 1756HP-TIME module to synchronize the Controllers without any ladder needed (te that the time accuracy is much better when PTP is being used): 1. Set the 1756HP-TIME module to output PTP in either the config image UDT or AOP: Rockwell Automation Hiprom 5 TE: If the user is using major firmware revision 2 of the 1756HP-TIME module all parameters can be set from the Add-on Profile (AOP) and UDTs are required as the images are structured. 2. Set the Ethernet bridge module (EN2 EN2TR etc.) to support CIPSync: 3. Set the Logix Controller to enable Time Synchronization: Rockwell Automation Hiprom 6 The Ethernet Bridge will serve as a boundary clock (PTP slave on Ethernet and PTP master on ControlBus). Thus the Logix Controller will synchronize to the Ethernet Bridge which in turn will synchronize to the 1756HP-TIME module. Once the Logix Controller has synchronized to the TIME module the user can confirm the time accuracy by selecting the Advanced button in the DateTime tab of the Controller AOP: Rockwell Automation Hiprom 7 SEQUENCE OF EVENTS (SOE) CST UTC The following redundant PLC architecture will be used as an example: RSLogix v16 When doing sequence of events (SOE) in a redundant system the user will need to add a 1756HP-TIME module per rack as to provide the CST and UTC pairs to each SOE module.
