









COM4串行通信
通信速度9600波特
RS-232C的信号电平
连接器RJ45
调制解调器支持否
电气模块总线
I/O容量1 x S800 I/O基本集群,多12 x S800输入/输出单元。
电源电流•大24 V–1.0 A(防短路,保险丝2 A快)
•大5 V–1.5 A(防短路)
电源电压变化24 V–跟随L处的输入功率+
光学模块总线(2)
I/O容量高达7个S800 I/O集群,每个集群有12个单元
连接器•双工光纤电缆
•单面光纤电缆
CEX总线(3)
容量:多12个通信接口
电源电流大24 V–2.4 A(保险丝3.15 A快速)
(1) PM851仅支持(CN1)以太网通信。
(2) 在带有PM851的光模块总线上,多可以有一个S800 I/O集群。
(3) 使用PM851,CEX总线上多可以有一个通信接口。
表49.PM851/PM856/PM860和TP830接口——技术数据
项目价值
附录A硬件装置技术数据
3BSE036351-510 A 243
电池
内存内容由内部或外部电池单元备份
(SB821)。备份时间见243页表50。
243页的表51显示了内部电池数据。对于外部电池数据,
参见392页的SB821外部电池–AC 800M内存备份和SB822
可充电外部电池–AC 800M内存备份,见394页。
电磁兼容性和电气安全
PM851/PM856/PM860/TP830符合中规定的要求
EMC指令89/336/EEC。
如果安装了电池,243页表50中给出的数字有效
正常CPU加电后,允许内存备份功能
激活。
表50.PM851/PM856/860的备份时间
源备份时间
内部电池至少48小时
外部电池SB821至少1个月
外部电池SB822
注:空电池的充电时间为
大约7小时。
满负荷时至少100小时
充电
表51.PM851/PM856/PM860和TP830–内部电池数据
项目价值
内部电池
电池类型低倍率锂,3.6 V,950 mAh
尺寸ANSI 1/2 AA,IEC 1/2 R6
锂含量0.3克
性能数据附录A硬件单元
244 3BSE036351-510 A
有关EMC和安全性的更多信息,请参见附录D,指令
考虑。
LED指示器
见179页表20。
性能数据
执行应用程序时,PM851/PM856/PM860的性能不同
程序
使用PM851/PM856和PM860中的相同应用程序,差异
执行时间可以表示为:
PM851/PM856的执行时间=2*PM860的执行时间
示例:如果某个应用程序在
PM860,相同的应用程序在
PM851/PM856。
附录A硬件单元PM851A/PM856A/PM860A和TP830——处理器单元
3BSE036351-510 A 245
PM851A/PM856A/PM860A和TP830–处理器单元
主要特征
•MPC860微处理器运行频率为48 MHz。
•对于PM851A,具有内部或
外部电池备用设施。
•对于PM856A,具有内部或
外部电池备用设施。
•对于PM860A,具有内部或
外部电池备用设施。
•12个S800输入/输出单元可连接到
电气模块总线。
•四个车载通信端口:
–CN1+CN2,以太网端口
(IEEE 802.3,10BaseT)
–COM3,带调制解调器的串行端口(RS-232C)
支持
–COM4,维修工具的串行端口(RS-232C)
•基本通信可通过使用附加通信进行扩展
接口单元。
•支持加载应用程序和冷保存的紧凑闪存接口
数据存储。
PM851A的数据与PM856A的数据相同,除了RAM和
PM851A中不支持CN2。
PM856A的数据与PM860A的数据相同,但以下性能除外:
应用程序执行,参见244页的性能数据。
技术数据附录A硬件单元
246 3BSE036351-510 A
技术数据
PM851A/PM856A/PM860A和TP830的技术数据如表52所示。
表52.PM851A/PM856A/PM860A和TP830–技术数据
项目价值
内存•2 MB闪存PROM(固件存储)。
•用于PM851A的12 MB SDRAM。
•用于PM856A和PM860A的16MB SDRAM。
典型功耗5 W
典型10W(包括模块总线和CEXBus的完全供电,见附录B,功耗)。
电流消耗:典型180 mA(大300 mA)
(不包括模块总线和CEX总线的供应,见附录
B、 功耗)。
电源输入接头四针,螺纹接头L+、L-、SA和SB。
电源
要求
指定为L+和L–24 V标称输入,变化
在19.2V DC和30V DC之间。
冗余电源
供应状态输入
指定为SA、SB的输入
•大输入电压30 V
•高电平15 V的小输入电压
•低电平8 V的大输入电压
这些输入是状态输入。阈值水平为:
逻辑“0”或“1”输入限制,而不是电源故障限制。
电源储存器处理器单元具有内部5ms电源储存,
足以使CPU达到maCOM4 Serial Communication
Communication speed 9600 baud
Signal levels RS-232C
Connector RJ45
Modem support No
Electrical ModuleBus
I/O capacity 1 x S800 I/O base cluster with up to 12 x S800 I/O units.
Supply current • Max 24 V – 1.0 A (short circuit proof, fuse 2 A fast)
• Max 5 V – 1.5 A (short circuit proof)
Supply voltage variation 24 V – follows the input power at L+
Optical ModuleBus(2)
I/O capacity up to 7 x S800 I/O clusters each with 12 units
Connector • Duplex Fiber Optic Cable
• Simplex Fiber Optic Cable
CEX-Bus(3)
Capacity up to 12 communication interfaces
Supply current Max 24 V – 2.4 A (fuse 3.15 A fast)
(1) Only (CN1) Ethernet Communication is supported for PM851.
(2) Maximum one S800 I/O cluster is possible on the optical ModuleBus with PM851.
(3) Maximum one communication interface on the CEX-bus is possible with PM851.
Table 49. PM851/PM856/PM860 and TP830 Interfaces – Technical data
Item Value
Appendix A Hardware Units Technical Data
3BSE036351-510 A 243
Battery
The memory content is backed up with either an internal or external battery unit
(SB821). For back-up time see Table 50 on page 243.
Table 51 on page 243 shows Internal battery data. For external battery data,
see SB821 External Battery – AC 800M Memory Back-up on page 392 and SB822
Rechargeable External Battery – AC 800M Memory Back-up on page 394.
Electro-magnetic Compatibility and Electrical Safety
PM851/PM856/PM860/TP830 meets the requirements specified in
EMC Directive 89/336/EEC.
The figures given in Table 50 on page 243 are valid if the batteries are installed
after a normal CPU power-up, allowing for the memory back-up function to be
activated.
Table 50. Back-up times for PM851/PM856/860
Source Back-up time
Internal battery Minimum 48 hours
External battery SB821 Minimum 1 month
External battery SB822
Note: Recharge time for an empty battery is
approximately 7 hours.
Minimum 100 hours when fully
charged
Table 51. PM851/PM856/PM860 and TP830 – Internal battery data
Item Value
Internal battery
Battery Type Low rate lithium, 3.6 V, 950 mAh
Size ANSI size 1/2 AA, IEC size 1/2 R6
Lithium content 0.3 g
Performance Data Appendix A Hardware Units
244 3BSE036351-510 A
For more information regarding EMC and safety, see Appendix D, Directive
Considerations.
LED Indicators
See Table 20 on page 179.
Performance Data
The PM851/PM856/PM860 differ in performance when executing an application
program.
Using the same application program in PM851/PM856 and PM860, the difference
in execution time can be expressed as:
Execution time in PM851/PM856 = 2 *Execution time in PM860
Example: If a certain application program has an execution time of 100 ms in
PM860, the same application program will have an execution time of 200 ms in
PM851/PM856.
Appendix A Hardware Units PM851A/PM856A/PM860A and TP830 – Processor Unit
3BSE036351-510 A 245
PM851A/PM856A/PM860A and TP830 – Processor Unit
Key Features
• MPC860 Microprocessor running at 48 MHz.
• For PM851A, 12 MB RAM with internal or
external battery back-up facility.
• For PM856A, 16 MB RAM with internal or
external battery back-up facility.
• For PM860A, 16 MB RAM with internal or
external battery back-up facility.
• 12 x S800 I/O units can be connected to the
electrical ModuleBus.
• Four on-board communication ports:
– CN1 + CN2, Ethernet ports
(IEEE 802.3, 10BaseT)
– COM3, serial port (RS-232C) with modem
support
– COM4, serial port (RS-232C) for service tool
• Basic communication is extendable by using additional communication
interface units.
• Compact Flash interface which supports loading of application and cold retain
data storage.
The data for PM851A is the same as for PM856A, except for the RAM and that
there is no support for CN2 in PM851A.
The data for PM856A is the same as for PM860A except for performance of
application program execution, see Performance Data on page 244.
Technical Data Appendix A Hardware Units
246 3BSE036351-510 A
Technical Data
Technical data for PM851A/PM856A/PM860A and TP830 is described in Table 52.
Table 52. PM851A/PM856A/PM860A and TP830 – Technical data
Item Value
Memory • 2 MB flash PROM (firmware storage).
• 12 MB of SDRAM for PM851A.
• 16 MB of SDRAM for PM856A and PM860A.
Power Dissipation 5 W typical
10 W typical (incl. full supply to ModuleBus and CEXBus, see Appendix B, Power Consumption).
Current Consumption 180 mA typical (300 mA max.)
(excl. supply of ModuleBus and CEX-Bus, see Appendix
B, Power Consumption).
Power Input Connector Four pin, screw connector L+, L–, SA and SB.
Power Supply
Requirements
Inputs designated L+ and L– 24 V nominal, variation
between 19.2V DC and 30V DC.
Redundant Power
Supply Status Inputs
Inputs designated SA, SB
• Max input voltage 30 V
• Min. input voltage for high level 15 V
• Max input voltage for low level 8 V
These inputs are status inputs. The threshold levels are
logical “0” or “1” input limits, not power fail limits.
Power Reservoir The processor unit has an internal 5ms power reservoir,
sufficient for the CPU to make a controlled power down.
Protection Rating IP20 according to EN60529, IEC 529.
Appendix A Hardware Units Technical Data
3BSE036351-510 A 247
Communication Ports and Interfaces
Technical data for communication ports and interfaces is described in Table 53.
Weight • 1100 g (2.4 lb) (package PM851AK01 with
PM851A, TP830 and bus terminations).
• 1100 g (2.4 lb) (package PM856AK01 with
PM856A, TP830 and bus terminations).
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