









PROFIBUS DP必须始终在两个外部节点处终止。这是
通常通过使用带有内置终端的连接器来完成。保证正确
工作终端连接器必须插入并供电。
必须满足屏蔽/接地的PROFIBUS DP要求。这个
PROFIBUS DP安装指南要求电缆屏蔽应:
电缆两端接地。必须这样做,尽管
CI854/CI854A已经通过连接器将屏蔽接地。
CI854/CI854A和TP854–PROFIBUS DP接口附录A硬件单元
298 3BSE036351-510 A
功能框图
图72.方框图——CI854A。(CI854,无主/双LED的相同图)
CEX总线接口
+5 V/+3.3 V
+24伏
表达
表达
扩展总线
DC/DC
转换器
CPU内核和内存
PROFIBUS主ASIC
线路冗余单元
RS485
现场总线A
现场总线B
RxB
RxA
F
R
分机
表达
延伸底板
二重的
一本正经
附录A硬件单元CI854/CI854A和TP854–PROFIBUS DP接口
3BSE036351-510 A 299
指标
技术数据
表82.CI854/CI854A–PROFIBUS DP LED指示器
名称/颜色功能
检测到F(故障)/红色单元错误。由硬件在
控制器复位。由控件控制
复位后的软件。
R(un)/绿色运行。在期间由硬件清除
控制器复位。由控件控制
复位后的软件。
RxA/黄色:在A线上接收每个电报的数据
接收到LED闪烁。在正常操作中:
被视为静态开启。
RxB/黄色接收线路B上的每个电报的数据
接收到LED闪烁。在正常操作中:
被视为静态开启。
基本(ary)/黄色(CI854A):此LED在单个和冗余状态下点亮
配置指示中的主CI854A
冗余配置。
双/黄色(CI854A):当CI854A运行时,此LED点亮
冗余配置。
表83.CI854/CI854A PROFIBUS DP接口规范
项目价值
DP服务的DP主类1和2类型
DP服务的DP Master Class 2
PROFIBUS-DP协议
通信速度9.6、19.2、93.75、187.5、500、1500、3000,
6000或12000 kbit/s
CI854/CI854A和TP854–PROFIBUS DP接口附录A硬件单元
300 3BSE036351-510 A
电流隔离是
状态指示灯正常运行:绿色。
异常故障:红色。
两个流量指示器-RxA和RxB-
由交通速度控制:闪烁黄色。
运行为主:黄色。
在冗余配置中运行:黄色。
接头两个DB9,TP854上的母接头。
电流消耗
(来自CEX总线24 V直流)
典型为190 mA(大240 mA)。
典型功耗为4.6W。
PROFIBUS上大容量32个节点,无
中继器。
根据EN60529,防护等级为IP20,
IEC 529。
重量700克(1.5磅)(包装CI854K01,带
CI854和TP854)。
700克(1.5磅)(包装CI854AK01,带
CI854A和TP854)。
尺寸宽59 x高185 x深127.5 mm
(宽2.9 x高7.3 x深5.0英寸)The PROFIBUS DP must always be terminated at the two outer nodes. This is
usually done by using connectors with built-in termination. To guarantee a correct
working termination the connector has to be plugged and power supplied.
The PROFIBUS DP requirements for screening/earthing have to be fulfilled. The
PROFIBUS DP installation guideline requires that the cable shield should be
connected to ground at both ends of the cable. This has to be done although the
CI854/CI854A already connects the shield to ground via the connectors.
CI854/CI854A and TP854 – PROFIBUS DP Interface Appendix A Hardware Units
298 3BSE036351-510 A
Functional Block Diagram
Figure 72. Block Diagram – CI854A. (CI854, same diagram without PRIM/DUAL LEDS)
CEX-Bus Interface
+5 V / +3.3 V
+24 V
Communication
Communication
Extension Bus
DC/DC
Converter
CPU-Kernel and Memory
PROFIBUS Master ASIC
Line Redundancy Unit
RS485
PROFIBUS A
PROFIBUS B
RxB
RxA
F
R
Extension Unit
Communication
Extension Baseplate
DUAL
PRIM
Appendix A Hardware Units CI854/CI854A and TP854 – PROFIBUS DP Interface
3BSE036351-510 A 299
Indicators
Technical Data
Table 82. CI854/CI854A – PROFIBUS DP LED Indicators
Designation/Color Function
F(ault) /Red Unit error detected. Set by the Hardware during
controller Reset. Controlled by the Control
Software after Reset.
R(un) /Green Operating. Cleared by the Hardware during
controller Reset. Controlled by the Control
Software after Reset.
RxA /Yellow Receive Data on Line A. For each telegram
received the LED flashes. In normal operation is
seen as static on.
RxB /Yellow Receive Data on Line B. For each telegram
received the LED flashes. In normal operation is
seen as static on.
PRIM(ary) /Yellow (CI854A) This LED is on in single and redundant
configuration. Indicates Primary CI854A in
redundant configuration.
DUAL /Yellow (CI854A) This LED is on when CI854A is running in
redundant configuration.
Table 83. CI854/CI854A PROFIBUS DP Interface Specifications
Item Value
Type DP Master Class 1and 2 for DP Services
DP Master Class 2 for DP Services
Protocol PROFIBUS DP
Communication speed 9.6, 19.2, 93.75, 187.5, 500, 1500, 3000,
6000 or 12000 kbit/s
CI854/CI854A and TP854 – PROFIBUS DP Interface Appendix A Hardware Units
300 3BSE036351-510 A
Galvanic isolation Yes
Status indicators Running normally: Green.
Exceptional fault: Red.
Two traffic indictors - RxA and RxB -
controlled by traffic pace: Flashing yellow.
Running as primary: Yellow.
Running in a redundant configuration: Yellow.
Connectors Two DB9, female on TP854.
Current consumption
(from CEX-Bus 24 V DC)
190 mA typical (max. 240 mA).
Power dissipation 4.6 W typical.
Capacity Max 32 nodes on PROFIBUS without
repeater.
Protection Rating IP20 according to EN60529,
IEC 529.
Weight 700 g (1.5 lb) (package CI854K01 with
CI854 and TP854).
700 g (1.5 lb) (package CI854AK01 with
CI854A and TP854).
Dimensions W 59 x H 185 x D 127.5 mm
(W 2.9 x H 7.3 x D 5.0 in)
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