UNITROL 1020控制处理器
系统状态参考
系列90-70 PLC CPU的%S内存区域中的特定参考。有些人已分配给FIP使用。
传输时隙FIP网络上COMV的每个MPS交换在一个时隙中进行。这个时隙可以是异步的或同步的。
传输时隙对应于具有周期性和相位的时隙范围相对于总线仲裁器周期的开始。在传输时隙中，一组通信车辆通过网络传输。传输时隙由网络配置工具。
TVA传输变量。TVA是两个用户之间的交换单位。COMV
包含一个或多个TVA。TVA从未被划分为多个COMV。TVA通常包含由支持的应用程序操作的变量表设备。本附录中的表格列出了COMREQ状态中报告的状态代码
COMREQ函数执行后的字。这些代码也可能出现在Word中1个详细的信道状态字。
状态代码是一个单字，包含低字节的主代码和次代码在高字节中。次要状态代码的含义取决于相关的主要状态代码。
状态代码分为下表：主要状态代码
次要状态代码主要状态代码05H的次要状态代码（远程服务器PLC处）和
85H（在客户PLC处）主要状态代码11H的次要状态代码（远程服务器PLC处）
主要状态代码14H的次要状态代码（在客户PLC处）
主要状态代码90H的次要状态代码（在客户端PLC），单槽CPU，带三个串行端口
在中提供6 MB电池备份内存
同一个槽包含256K非易失性用户闪存支持7.92及更高版本中的BMA
支持浮点计算12K输入和输出（任意混合），最高8K模拟输入/输出每个布尔函数0.4微秒96 MHz，80486DX4微处理器支持IC66（可以是IC660或IC661）和IC697 I/O
由MS-DOS软件产品编程，或在上运行的基于Windows的软件产品
基于以太网的Windows 95或Windows NTTCP/IP或通过SNP端口
可配置数据和程序存储器电池供电日历时钟三位操作模式开关密码控制访问远程编程器按键开关
内存保护七个状态LED
软件配置（无DIP开关或跳线）
前门内的参考信息系统内可升级固件
System Status References
Specific references in the %S memory area of the Series 90-70 PLC CPU. Some have
been assigned for FIP use.
Transport Time Slot
Each MPS exchange of a COMV on the FIP network is carried out in a time slot. The
time slot may be either asynchronous or synchronous.
A transport time slot corresponds to a time slot range which is periodic and phased
in relation to the beginning of the Bus Arbiter cycle. In a transport time slot, a set of
COMVs is transported by the network. Transport time slots are set up by the
Network Configuration Tool.
TVA
Transport Variable. A TVA is the unit of exchange between two subscribers. A COMV
contains 1 or more TVAs. A TVA is never divided into multiple COMVs. A TVA
generally carries a table of variables manipulated by the applications supported by
the devices.The tables in this appendix list the status codes that are reported in the COMREQ Status
word after the execution of a COMREQ function. These codes also may appear in Word
1 of the Detailed Channel Status words.
Status Codes are a single word containing a major code in the low byte and a minor code
in the high byte. The meaning of a Minor Status Code depends upon the associated Major Status Code.
Status Codes are grouped into the following tables:
Major Status Codes
Minor Status Codes
Minor Status Codes for Major Status Codes 05H (at Remote Server PLC) and
85H (at Client PLC)
Minor Status Codes for Major Status Code 11H (at Remote Server PLC)
Minor Status Codes for Major Status Code 14H (at Client PLC)
Minor Status Codes for Major Status Code 90H (at Client PLC) Single slot CPU with three serial ports
Provides 6 Mbytes of battery-backed memory in
the same slot
Contains 256K of non-volatile user flash memory
Supports BMA in release 7.92 and later
Supports floating point calculations
12K inputs and outputs (any mix), and up to 8K
analog I/O
0.4 microseconds per boolean function
96 MHz, 80486DX4 microprocessor
Supports IC66 (can be IC660 or IC661) and IC697 I/O
Programmed by MS-DOS software products, or
Windows based software products running on
Windows 95 or Windows NT over Ethernet
TCP/IP or through an SNP port
Configurable data and program memory
Battery-backed calendar clock
Three position operation mode switch
Password controlled access
Remote programmer keyswitch
memory protection
Seven status LEDs
Software configuration (No DIP switches
or jumpers)
Reference information inside front door
In-system upgradable firmware
