2003-05-14
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Revision History
| Version | Date | Author | Description |
| 1.0 | 2003-05-14 | ZHANGLY | Original the manual |
BA板用于采样OTIS电梯楼层、方向及状态信号，且以串行通信的方式传送出去，串行通信为标准的RS485半双工接口。BA板每100mS采样一次输入信号，并按照一定的格式编码保存起来，等待上位机查询。BA板按从机方式工作，由板上的拨码开关的bit1~bit5设识别地址，上位微机为主机，微机通过RS485总线以巡查方式收取BA板上的相关数据。其巡查原理也是这样，上位微机向RS485总线发出所要查询的BA板（也就是对应于某台电梯）的地址指令，BA板接到指令后判断是否为本机地址；如果是本机地址，则向总线发出测量数据指令，上位微机在总线上接收该BA板的测量数据指令。
1.拨码开关设置
1.1 DIP拨码开关S1位置于“ON”则逻辑为“1”，否则为“0”。
| BT2 | BT1 | BT0 | ADD4 | ADD3 | ADD2 | ADD1 | ADD0 |
1.2节点识别地址设置
识别地址由ADD0-ADD4设定。
| 地址设置 | ||||||
| ADD4 | ADD3 | ADD2 | ADD1 | ADD0 | 地址选择 | |
| 0 | 0 | 0 | 0 | 1 | 1 | |
| 0 | 0 | 0 | 1 | 0 | 2 | |
| 0 | 0 | 0 | 1 | 1 | 3 | |
| 0 | 0 | 1 | 0 | 0 | 4 | |
| 0 | 0 | 1 | 0 | 1 | 5 | |
| 0 | 0 | 1 | 1 | 0 | 6 | |
| 0 | 0 | 1 | 1 | 1 | 7 | |
| 0 | 1 | 0 | 0 | 0 | 8 | |
| 0 | 1 | 0 | 0 | 1 | 9 | |
| 0 | 1 | 0 | 1 | 0 | 10 | |
| 0 | 1 | 0 | 1 | 1 | 11 | |
| 0 | 1 | 1 | 0 | 0 | 12 | |
| 0 | 1 | 1 | 0 | 1 | 13 | |
| 0 | 1 | 1 | 1 | 0 | 14 | |
| 0 | 1 | 1 | 1 | 1 | 15 | |
| 1 | 0 | 0 | 0 | 0 | 16 | |
| 1 | 0 | 0 | 0 | 1 | 17 | |
| 1 | 0 | 0 | 1 | 0 | 18 | |
| 1 | 0 | 0 | 1 | 1 | 19 | |
| 1 | 0 | 1 | 0 | 0 | 20 | |
| 1 | 0 | 1 | 0 | 1 | 21 | |
| 1 | 0 | 1 | 1 | 0 | 22 | |
| 1 | 0 | 1 | 1 | 1 | 23 | |
| 1 | 1 | 0 | 0 | 0 | 24 | |
| 1 | 1 | 0 | 0 | 1 | 25 | |
| 1 | 1 | 0 | 1 | 0 | 26 | |
| 1 | 1 | 0 | 1 | 1 | 27 | |
| 1 | 1 | 1 | 0 | 0 | 28 | |
| 1 | 1 | 1 | 0 | 1 | 29 | |
| 1 | 1 | 1 | 1 | 0 | 30 | |
| 1 | 1 | 1 | 1 | 1 | 31 | |
波特率由BT0-BT1设定，如下表。
| BT2 | BT1 | BT0 | 波特率(bit/S) |
| 0 | 0 | 0 | 57600 |
| 0 | 0 | 1 | 28800 |
| 0 | 1 | 0 | 19200 |
| 0 | 1 | 1 | 14400 |
| 1 | 0 | 0 | 9600 |
| 1 | 0 | 1 | 4800 |
| 1 | 1 | 0 | 2400 |
| 1 | 1 | 1 | 1200 |
2.1命令
本协议共有两条命令，全部是字节流形式，由主机发送控制命令、BA板采用被动接收并以应答的方式发回电梯状态信息，命令执行完毕可根据返回的字节流判断命令执行是否成功，现分别介绍如下：(除非特别指明，每一格代表一个字节)
2.1.1巡查地址命令
发送命令格式
| A1h | 地址 |
发送命令格式
| 82h | 00h | 05h | 状态1 | 状态2 | 状态3 | 状态4 | 状态5 |
2.2.1定义
1.巡查指令
7 6 5 4 3 2 1 0
| 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 |
7 6 5 4 3 2 1 0
| 0 | 0 | 0 | X | X | X | X | X |
7 6 5 4 3 2 1 0
| 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
7 6 5 4 3 2 1 0
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
7 6 5 4 3 2 1 0
| 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
状态1：
7 6 5 4 3 2 1 0
| INF8 | INF7 | INF6 | INF5 | INF4 | INF3 | INF2 | INF1 |
状态2：
7 6 5 4 3 2 1 0
| 楼层数据百位（半位） | UP | DN | INF10 | INF9 |
7 6 5 4 3 2 1 0
| 楼层数据十位 |
7 6 5 4 3 2 1 0
| 楼层数据个位 |
7 6 5 4 3 2 1 0
| 校验（前四个状态字异或） |
电梯系统的楼层数据是十六段显示编码，BA板测量到的电梯系统十六段显示编码的楼层译成二进制码，楼层数据按百位（实际为半位）、十位、个位分别编码，状态2的高半位为百位，状态3为十位，状态4为个位。十六段显示编码到二进制码译码关系如下表。
| 二进制码 | 显示 | 二进制码 | 显示 | 二进制码 | 显示 | 二进制码 | 显示 |
| 00 | 0 | 0A | A | 14 | K | 1E | U |
| 01 | 1 | 0B | B | 15 | L | 1F | V |
| 02 | 2 | 0C | C | 16 | M | 20 | W |
| 03 | 3 | 0D | D | 17 | N | 21 | X |
| 04 | 4 | 0E | E | 18 | O | 22 | Y |
| 05 | 5 | 0F | F | 19 | P | 23 | Z |
| 06 | 6 | 10 | G | 1A | Q | 24 | - |
| 07 | 7 | 11 | H | 1B | R | 25 | * |
| 08 | 8 | 12 | I | 1C | S | 26 | 不显示 |
| 09 | 9 | 13 | J | 1D | T |
校验字由状态5描述，校验字是其前4个字节相异或所得，即：
状态5=状态1⊕状态2⊕状态3⊕状态4
3.性能指标
电源
输入电压 额定 30VDC
允许范围 18-40V
输入电流 额定 100mA
允许范围 2A
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