1768-L45S 可编程逻辑控制器 具有集成的安全功能

☆型号：1768-L45S 可编程逻辑控制器  具有集成的安全功能

【产品详情】

关于1768-L45S

1768-L45S 是一款 Allen-Bradley 制造的可编程逻辑控制器 （PLC）。该控制器属于 1768 Compact GuardLogix 产品系列。该控制器具有集成的安全功能，设计用于在安全完整性等级 （SIL） 3 和性能等级 （e） 以下的安全过程中运行，其中模块安全状态为断电状态。以 PFD 和 PFH 测量的故障概率、系统反应时间设置以及满足 SIL 3/PLe 标准的功能验证测试是该模块支持的一些安全要求。 1768-L45S Compact GuardLogix 控制器具有相当于该控制器具有集成的 3.0 MB 标准存储器（用于标准控制器功能）和 1.0 MB 安全存储器（用于安全应用）。它具有嵌入式 RS232 通信端口，旨在与各种通信协议和设置进行通信，例如 DF1 点对点、DF1 主站、DF1 从站、DF1 无线电调制解调器、用户（仅限通道 0）和 DH-485。串行通信仅限于 15.2 米或 50 英尺。随着串行通信电缆长度的增加，波特率或通信数据速率必须配置为较慢的速度。 1768-L45S 能够与人机界面 （HMI） 设备进行通信，例如 Allen-Bradleys PanelView 操作员终端和第三方类似设备。使用 HMI 设备，可以像标准控制器一样访问标准 HMI 标签。它还可以访问安全标签，仅限于监控功能。 该安全控制器设计有安装在控制器前面板上的按键开关。此按键开关标记为 RUN、PROG 和 REM。当设置为 RUN 模式时，将执行逻辑。当设置为 PROG 时，控制器允许下载编程并停止逻辑执行。当设置为 REM 模式时，控制器允许编程和在线编辑，并继续执行逻辑。 1769-L45S 可与 1768 I/O、通信和专用模块一起在本地安装。最多支持四 （4） 个本地模块。最多可安装三 （3） 个用于扩展 I/O 的扩展 I/O bank，其中最多可安装三十 （30） 个 1769 紧凑型 I/O 模块以充当远程 I/O 模块。 通用工业协议 （CIP） 用于通过以太网 I/P 网络连接安全输入和输出设备。使用这种通信协议，可以建立对安全控制器的控制和监视。该控制器还可与 1768-ENBT 以太网通信模块（A 系列，修订版 3）和 1768-CNB ControlNet 通信模块（A 系列，修订版 3）一起使用。 1768-L45S 的背板电流要求为 2.1 A @ 24V，1768 背板电流输出为 5.6 A @ 5.2V，1769 背板电流输出为 2.0 A @ 5.2V。1768 和 1769 背板总电流输出为 7.6 A @ 5.2V。模块功耗为 9.5 W，功耗为 50.4 W。模块的物理尺寸为 131.6 x 90 x 121.8 毫米（5.18 x 3.55 x 4.80 英寸），重量为 0.45 千克（15.9 盎司）。

☆型号：1768-L45S 可编程逻辑控制器  具有集成的安全功能

【英文介绍】

About 1768-L45S

The 1768-L45S is a programmable logic controller (PLC) manufactured by Allen-Bradley. The controller belongs to the 1768 Compact GuardLogix product family. The controller has integrated safety features and is designed to operate in safe processes below Safety Integrity Level (SIL) 3 and performance level (e), where the module safety state is power off. The probability of failure measured in PFD and PFH, system reaction time Settings, and functional verification tests to SIL 3/PLe standards are some of the safety requirements supported by this module. The 1768-L45S Compact GuardLogix controller has the equivalent of an integrated 3.0 MB standard memory (for standard controller functions) and 1.0 MB safe memory (for security applications). It has an embedded RS232 communication port and is designed to communicate with various communication protocols and Settings, such as DF1 point-to-point, DF1 master, DF1 slave, DF1 radio modem, User (channel 0 only), and DH-485. Serial communication is limited to 15.2 meters or 50 feet. As the length of the serial communication cable increases, the baud rate or communication data rate must be configured to a slower speed. The 1768-L45S is capable of communicating with human machine interface (HMI) devices, such as Allen-Bradleys PanelView operator terminals and third-party similar devices. With HMI devices, standard HMI labels can be accessed just like standard controllers. It also has access to security tags and is limited to monitoring functions. The safety controller is designed with a key switch mounted on the front panel of the controller. This key switch is labeled RUN, PROG, and REM. When set to RUN mode, the logic is executed. When set to PROG, the controller allows you to download the program and stop logic execution. When set to REM mode, the controller allows programming and online editing, and continues to execute logic. The 1769-L45S can be installed locally with the 1768 I/O, communication, and dedicated modules. Up to four (4) local modules are supported. Up to three (3) Extended I/O Banks for extended I/O can be installed, of which up to thirty (30) 1769 compact I/O modules can be installed to act as remote I/O modules. The Common Industrial Protocol (CIP) is used to connect secure input and output devices over an Ethernet I/P network. Using this communication protocol, the control and monitoring of the security controller can be established. The controller can also be used with the 1768-ENBT Ethernet communication module (Series A, Revision 3) and the 1768-CNB ControlNet communication module (Series A, Revision 3). The backplane current requirements of the 1768-L45s are 2.1A@24V, the 1768 backplane current output is 5.6A@5.2V, and the 1769 backplane current output is 2.0A@5.2V. The total current output of the 1768 and 1769 backplanes is 7.6A@5.2V. The power consumption of the module is 9.5W and the power consumption is 50.4W. The physical dimensions of the module are 131.6 x 90 x 121.8 mm (5.18 x 3.55 x 4.80 inches) and the weight is 0.45 kg (15.9 ounces).

☆型号：1768-L45S 可编程逻辑控制器  具有集成的安全功能

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