Status Words - Omron GRT1-CRT - 05-2008 Operation Manual

I/O Allocations to CompoNet Master Unit
Bad Configurations
5-3-3

Status Words

46
• Input Units and Output Units
2-point
CompoNet
Analog
Communications
Input Unit
Unit
Two-point Analog Input Unit (GRT1-AD2): 2 words (4 bytes) × 7 + Communications
Unit status = 30 bytes in Input Area
Analog Output Unit (GRT1-DA2C): 2 words (4 bytes) × 2 = 8 bytes in Output Area
→ Totals: 30 bytes in Input Area
8 bytes in Output Area
• Too Many Allocated Bits
2-point
CompoNet
Analog
Communications
Input
Unit
Unit
Two-point Analog Input Unit (GRT1-AD2): 2 words (4 bytes) × 9 = 38 bytes in Input Area
Two bytes are used for CompoNet Communications Unit status.
• Too Many Units
2-point
2-point
CompoNet
Relay
Relay
Communications
Output
Output
Unit
Unit
Unit
Two-point Relay Output Unit (GRT1-ROS2): 2 bits × 65 = 17 bytes in Output Area
Two bytes are used for CompoNet Communications Unit status.
• Too Many Allocated Bits with Bits That Are Not Used
2-point
4-point
CompoNet
Analog
DC Input
Communications
Input
Unit
Unit
Unit
12 Units (6 sets of a 4-point Input Unit and a 2-word Input Unit)
Four-point DC Input Unit (GRT1-ID4): 4 bits × 6 = 3 bytes in Input Area
Two-point Analog Input Unit (GRT1-AD2): 2 words (4 bytes) × 6 = 24 bytes in Input Area
Two bytes are used for CompoNet Communications Unit status.
→ Total: 29 bytes + 9 unused bytes = 38 bytes in Input Area
The status words show the status of the SmartSlice I/O Units in the Smart-
Slice I/O Terminal, the connection status with the CompoNet Master Unit, and
the participation status.
There are two type of status: Status of the CompoNet Communications Unit
and the participation status of the SmartSlice I/O Units. There are different
words for each of these.
2-point
2-point
2-point
Analog Analog
Analog
Output
Output
Input Unit
Unit
Unit
7 Units 2 Units
2-point
2-point 2-point
Analog
Analog
Analog
Input
Input
Input
Unit Unit
Unit
9 Units
65 Units
2-point
4-point
Analog
DC Input
Input
Unit
Unit
Section 5-3
End Unit
End Unit
2-point 2-point
Relay Relay
End Unit
Output Output
Unit Unit
2 bytes in the Input Area
End Unit