UNS2882A 3BHE003855R0001电路板,UNS2882A模块数据库根据命令更改模块操作ALG442可以直接响应应用程序发出的特定COMM_REQ命令，以：▪ 清除模块的%I错误代码▪ 修改输入报警限值，以及▪ 将一个或两个输出置于斜坡模式，并设置斜坡特性COMM_REQ函数的任务输入必须为零。COMM_REQ格式模块ALG442可以直接响应来自应用程序：1、清除模块的%I错误代码。2、修改输入报警限值。
UNS2882A 3BHE003855R0001电路板将一个或两个输出置于斜坡模式，并设置斜坡特性。在断电期间，不会保留对模块的这些更改。如果模块通电，新命令必须发送至模块，以再次修改配置的报警限值，或为设置斜坡操作输出。危险区域安装以下信息适用于带有UL危险区域标记或ATEX标记的产品对于爆炸性环境： 标有I类A、B、C和D组2类危险区域的设备仅适用于I类2类A、B、C、D组或非危险场所 警告-爆炸危险-更换部件可能会影响I级的适用性，第2部分； 警告-爆炸危险-在危险位置时，请在更换前关闭电源或接线模块；和 警告-爆炸危险-除非有电源，否则不要连接或断开设备已关闭或已知该区域无危险。
Changing Module Operation on Command
The ALG442 can respond directly to a specific COMM_REQ command from the application program to:
▪ clear the module’s %I error code
▪ modify the Input alarm limits, and
▪ put one or both outputs in Ramp mode and set up the ramp characteristics
The Task input to the COMM_REQ function must be zero.
COMM_REQ Format
Module ALG442 can respond directly to a specific COMM_REQ (Communication Request) command from the
application program to:
1. Clear the module’s %I error code.
2. Modify the Input alarm limits, and.
3. Put one or both outputs in Ramp mode and set up the ramp characteristics.
These changes to module are not retained during loss of power. If the module is power-cycled, new commands
must be sent to the module to again modify the configured alarm limits, or to set up Ramp operation for the
outputs.Installation in Hazardous Areas
The following information is for products bearing the UL marking for Hazardous Areas or ATEX marking
for explosive atmospheres:
EQUIPMENT LABELED WITH REFERENCE TO CLASS I, GROUPS A, B, C & D, DIV. 2 HAZARDOUS AREAS IS
SUITABLE FOR USE IN CLASS I, DIVISION 2, GROUPS A, B, C, D OR NON-HAZARDOUS LOCATIONS ONLY
WARNING - EXPLOSION HAZARD - SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I,
DIVISION 2;
WARNING - EXPLOSION HAZARD - WHEN IN HAZARDOUS LOCATIONS, TURN OFF POWER BEFORE REPLACING
OR WIRING MODULES; AND
WARNING - EXPLOSION HAZARD - DO NOT CONNECT OR DISCONNECT EQUIPMENT UNLESS POWER HAS
BEEN SWITCHED OFF OR THE AREA IS KNOWN TO BE NONHAZARDOUS.
