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| 型号： | 101-1108 |
| 厂商： | Rabbit Semiconductor |
| 文件页数： | 60/70页 |
| 文件大小： | 0K |
| 描述： | KIT EMBEDDED PLC APPLICATION |
| 标准包装： | 1 |
| 系列： | Coyote™ |
| 类型： | MPU 模块 |
| 适用于相关产品： | BL2500 |
| 所含物品： | BL2500、ISaGRAF V3.50、嵌入式 PLC 软件内核、ISaGRAF 编程缆线和说明文档 |
| 其它名称： | 316-1120 |
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EMBEDDED
PLC BL2500 User’s Manual
FAQ and Troubleshooting
7. FAQ AND TROUBLESHOOTING
7.1 KNOWN ISSUES
7.1.1 BL2500 with Rabbit 3000 Microprocessor Revision 0 (IL1T)
The Rabbit microprocessor R3000 Revision 0 (IL1T or IZ1T) has a bug on the parallel port F (see Z-
World’s TN228 http://www.zworld.com/documentation/docs/refs/TN228/TN228.pdf ). The analog inputs
and analog outputs use the PWM which uses parallel port F. Thus any operation on analog I/O affects the
normal operation of outputs, serial RS485 transmitter enable signal, SPI enable signal and LEDs DS3
and DS4.
If you have an SBC BL2500 with the Rabbit 3000 microprocessor revision 0 (IL1T or IZ1T) and want to
use the analog features bear in mind that outputs 0 to 3, RS485 and RabbitNet can not be used.
For more information about the Rabbit 3000 microprocessor revisions see Appendix B of [3].
7.1.2 BL2500 with Large Sector Flash
The EMBEDDED PLC kernel writes the ISaGRAF application on flash to preserve the application on power
cycles. This operation is done only with BL2500 with small sector flash. EMBEDDED PLC kernel saves the
ISaGRAF application on Battery-Backed RAM if the BL2500 has large sector flash.
7.1.3 ISaGRAF Floating Point Arithmetic
The floating point arithmetic implemented by Dynamic C for the Rabbit 3000 microprocessor is not 100%
compliant with the IEEE Standard. When doing arithmetic operations with numbers close to the upper
limit (3.4E38) instead of causing an overflow the result goes beyond the limits set by the standard.
External applications, such as ISaGRAF Debugger, monitoring those values will fail because those values
are invalid floating point (NaN).
When this condition happens, the ISaGRAF Debugger stops but leaves some processes running. If you
experience this problem, close all ISaGRAF applications (including the Project Management). Re open
the Project Management to resume ISaGRAF development.
7.1.4 Reading/writing 32-bit integer/real analog variables via Modbus
EMBEDDED PLC supports reading and/or writing 32-bit integer/real analog variable through Modbus.
Requests are handled by using two consecutive words (multiple registers) in little endian format, i.e. the
less significant word goes first. The constraint is the Modbus address for analog variables must be odd
number.
OEM Technology Solutions
Page 54
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|---|---|
| 101-1109 | 功能描述:KIT EMBEDDED PLC APPLICATION RoHS:否 类别:编程器，开发系统 >> 通用嵌入式开发板和套件（MCU、DSP、FPGA、CPLD等） 系列:Coyote™ 产品培训模块:Blackfin® Processor Core Architecture Overview Blackfin® Device Drivers Blackfin® Optimizations for Performance and Power Consumption Blackfin® System Services 特色产品:Blackfin? BF50x Series Processors 标准包装:1 系列:Blackfin® 类型:DSP 适用于相关产品:ADSP-BF548 所含物品:板，软件，4x4 键盘，光学拨轮，QVGA 触摸屏 LCD 和 40G 硬盘 配用:ADZS-BFBLUET-EZEXT-ND - EZ-EXTENDER DAUGHTERBOARDADZS-BFLLCD-EZEXT-ND - BOARD EXT LANDSCAP LCD INTERFACE 相关产品:ADSP-BF542BBCZ-4A-ND - IC DSP 16BIT 400MHZ 400CSBGAADSP-BF544MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF542MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF542KBCZ-6A-ND - IC DSP 16BIT 600MHZ 400CSBGAADSP-BF547MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF548BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF547BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF544BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF542BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGA |
| 10-1110B | 制造商:Datak Corporation 功能描述: |
| 101110F9012M440ZA | 制造商:SUYIN-USA 制造商全称:SUYIN-USA 功能描述:RJ45 1X1 TAB DOWN W/LED & TRANSFORMER |
| 101110F9017M447ZA | 制造商:SUYIN-USA 制造商全称:SUYIN-USA 功能描述:RJ45 1X1 TAB DOWN W/LED & TRANSFORMER |
| 101110F9042M442ZA | 制造商:SUYIN-USA 制造商全称:SUYIN-USA 功能描述:RJ45 1X1 TAP DOWN W/LED & TRANSFORMER |
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