Справочник Пользователя для Allen-Bradley devicenet modules in logix5000 control systems
Publication DNET-UM004A-EN-P - March 2004
Using POINT™ I/O Modules on a DeviceNet Network 15-25
1734-OE2C Analog Current Output Module
Message size: 4 bytes
Message size: 2 Bytes
Channel Status
1734-OE2V Analog Output Module
Message size: 2 Bytes
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
Consumes (Tx)
Output Channel 0 High Byte
Output Channel 0 Low Byte
Output Channel 1 High Byte
Output Channel 1 Low Byte
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
Produces (Rx)
High Byte - Channel 1 Status
Low Byte - Channel 0 Status
Not used
HCA
LCA
CM
CF
Not used
HCA
LCA
CM
CF
Where:CF = Channel Fault status0 = no error1 = fault
CM = Calibration Mode0 = normal1 = calibration mode
LCA = Low Clamp Alarm0 = no error1 = fault
HCA = High Clamp Alarm0 = no error1 = fault
Table 15.2
Channel Status Byte
Channel Status Byte
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Not used
High Clamp
Low Clamp
CAL Mode
Channel Fault
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
Produces (scanner Rx) Channel 1 Status - High Byte
Channel 0 Status - Low Byte
Not used
HCA
LCA
CM
ST
Not used
HCA
LCA
CM
ST
Where:ST = Channel Fault Status; 0 = no error, 1 = fault
CM = Calibration Mode; 0 = normal, 1 = calibration mode
LCA = Low Clamp Alarm; 0 = no error, 1 = fault
HCA = High Clamp Alarm; 0 = no error, 1 = fault