VE4001S4T2B2模块备件

VE4001S4T2B2

在不影响的情况下调试额外的站
现有车站。未来的扩建对车站没有影响
已经在运行。
传输速度介于9.6 Kbit/sec和1.5 Mbit/sec之间
选择并适用于该段上的所有设备。
DeltaV Profibus DP主机可以在
段，尽管通常使用地址1。三角洲
M系列Profibus DP接口卡可以使用或设置
通过位于
接线板。在终端器断开的情况下，DP卡
可以安装在段中的任何位置。与终结者
连接后，DeltaV Profibus DP主机必须位于以下位置之一：
段的末端。
在DeltaV v12及更高版本中，每个连接的DST数
在大多数情况下，Profibus DP设备将为1 DST。DST类型
counted将是用于引用的有价值的类型
每个设备的信号。如果引用的内容超过
来自设备的16个信号，除此之外的其他信号参考
16个参考将分别计算为DST。电机起动器，
例如，对于4到5个信号参考，将消耗1个DST
（典型的AI或DO DST）。远程I/O岛将消耗
前16个信号参考为1个DST，每个信号参考为一个DST
16个信号参考之外的附加信号参考。
对于v12之前的DeltaV版本，从
连接的Profibus DP设备将计为1个DST。
M系列Profibus DP系列2 Plus接口卡
www.emerson。com/deltav 3
2020年4月
Profibus DP段的性能将是一项功能
连接的设备数量和波特率；
通常，将引入额外的80-100mS延迟，如下所示
与直接将信号连接到DeltaV Classic相比
I/O通道。
充分利用Profibus DP设备的智能-控制
模块和图形显示模板随
用于普通Profibus DP设备的DeltaV系统，提供简单
将来自这些设备的诊断信息集成到
DeltaV系统。
DP从站与DP主站
DP从设备是一个外围设备（I/O设备、驱动器、HMI等），
阀门等）收集输入信息并发送输出
向主机发送信息。还有一些设备提供：
仅输入或仅输出信息。
输入和输出信息的数量取决于
设备类型。多244字节的输入信息，以及
每个从站允许244字节的输出信息。
DeltaV M系列Profibus DP接口卡（主卡）
从从设备循环读取输入信息，以及
循环地将输出信息写入从设备。在里面
除了循环用户数据传输外，Profibus DP还提供
强大的诊断和配置功能。
Profibus DP的广泛诊断功能使快速
故障位置。传输诊断信息
在公共汽车上，在主车站集合。这些信息是：
分为以下三个层次：
电站相关诊断。这些信息涉及
整个装置的一般运行状态（即
温度或低电压）。
模块相关诊断。这些消息表明
特定I/O范围（即8位输出模块）中存在故障
车站的。
通道相关诊断。这些消息表示
单个输入/输出位出错（即，短路接通
产出7）

VE4001S4T2B2

VE4001S4T2B2

commissioning of the additional stations without influencing
existing stations. Future expansions have no effect on stations
already in operation.
A transmission speed between 9.6 Kbit/sec and 1.5 Mbit/sec
is selected and is applicable to all devices on that segment.
The DeltaV Profibus DP master can assume any address on
the segment, although address 1 is typically used. The DeltaV
M-series Profibus DP Interface Card can be set up with or
without a segment Terminator through a jumper located in the
terminal block. With the terminator disconnected, the DP card
can be installed anywhere in the segment. With the terminator
connected, the DeltaV Profibus DP master must be at one of
the ends of the segment.
In DeltaV v12 and later, the number of DSTs per connected
Profibus DP device will be 1 DST in most cases. The DST type
counted will be the most valuable type used to reference a
signal for each device. If references are made to more than
16 signals from a device, additional signal references beyond
the 16th reference will each count as a DST. A motor starter,
for example, with 4 to 5 signal references, will consume 1 DST
(typical an AI or DO DST). A remote I/O island will consume
1 DST for the first 16 signal references, and 1 DST for each
additional signal reference beyond the 16th signal reference.
For DeltaV versions prior to v12, each signal referenced from a
connected Profibus DP device will count as 1 DST each.
M-series Profibus DP Series 2 Plus Interface Cards
www.emerson.com/deltav 3
April 2020
Performance of the Profibus DP segment will be a function
of the number of devices connected and the Baud rate;
typically, an additional 80—100mS latency will be introduced as
compared to directly connecting the signal to a DeltaV Classic
I/O channel.
Fully utilize the intelligence of your Profibus DP devices - control
module and graphical display templates are included with the
DeltaV system for common Profibus DP devices, providing easy
integration of diagnostic information from these devices within
the DeltaV system.
DP Slave vs. DP Master
A DP slave is a peripheral device (I/O device, drive, HMI,
valve, etc.) that collects input information and sends output
information to the master. There are also devices that supply
only input or only output information.
The amount of input and output information depends on the
device type. A maximum of 244 bytes of input information and
244 bytes of output information is permitted per slave.
The DeltaV M-series Profibus DP Interface Card (master)
cyclically reads the input information from the slaves and
cyclically writes the output information to the slaves. In
addition to cyclic user data transmission, Profibus DP provides
powerful functions for diagnostics and configuration.
The extensive diagnostic functions of Profibus DP enable fast
location of faults. The diagnostic messages are transmitted
over the bus and collected at the master. These messages are
divided into the following three levels:
Station-related diagnostics. These messages concern the
general operational status of the whole device (i.e., over
temperature or low voltage).
Module-related diagnostics. These messages indicate that a
fault is present in a specific I/O range (i.e., 8-bit output module)
of a station.
Channel-related diagnostics. These messages indicate an
error at an individual input/output bit (i.e., short circuit on
output 7)