Eaton Crouse-hinds series User Manual

90
INM MTL SUM5 Rev 7
DRAFT - 09 June 2021 DRAFT - 09 June 2021
33 MODBUS SLAVE – STANDARD COMMUNICATIONS
Function Descriptions
This section describes the process of reading from and writing data to a SmartAlarm annunciator.
33.1 Read Coil Status – Function 01 – Read Request – Master
Coil Address
This is used to address the “start” channel to be read, typically the rst channel “channel 1”
contact status on alarm card would be coil address 00 01
To read the contact status coils use address range 1- 8
To read the alarm status coils use address range 11- 18
To read the disable status coils use address range 21- 28
Number of Coils
This represents the number of coils (Channels) the master wishes to read. The range is 1- 8.
33.2 Read Coil Status – Function 01 – Read Response - Slave
Byte Count
This represents the number of data bytes sent
Data
Data returned depends on coil address originally specied by the master.
Coil address 1 - 8 returns Contact status data
0 = Contact Normal
1 = Contact Abnormal
Coil address 11 - 18 returns Alarm status data
0 = Alarm Normal
1 = Alarm Abnormal
Coil address 21 - 28 returns Disable status data
0 = Channel Enabled
1 = Channel Disabled

Eaton Crouse-hinds series Specifications

General

Brand	Eaton
Model	Crouse-hinds series
Category	Lighting Equipment
Language	English