Specifications

Ethernet Head Station STL-ETH1 (Ethernet)
4 - 12
MITSUBISHI ELECTRIC
● Analog output modules
The hardware of an analog output module has 16 bits of analog data per channel and 8 bits of
control/status. However, the head station/controller with MODBUS/TCP does not have access to
the 8 control/status bits. The 16 bits of analog data per channel are grouped as words and mapped
in Intel format in the Output Process Image.
When digital output modules are also present in the node, the analog output data is always
mapped into the Output Process Image in front of the digital data.
– Two-channel analog output modules
– Four-channel analog output modules
Type of module Name ID number Description
Process Image [Byte]
Input Output
Analog
output
modules
Voltage STL-DA2-V 51205042 2 outputs 0 to 10 V
04
Current STL-DA2-I 51205041 2 outputs 4 to 20 mA
Tab. 4-14: Process data of two-channel analog output modules
Output Process Image
Description
Offset
Byte Destination
High Byte Low Byte
0 D1 D0 Analog output Channel 1
1 D3 D2 Analog output Channel 2
Tab. 4-15: Allocation of data for two-channel analog output modules
Type of module Name ID number Description
Process Image [Byte]
Input Output
Analog
output
modules
Voltage
STL-DA4-V1 51205038 4 outputs 0 to 10 V
08STL-DA4-V2 51205039 4 outputs –10 to 10 V
Current STL-DA4-I 51205040 4 outputs 4 to 20 mA
Tab. 4-16: Process data of four-channel analog output modules
Output Process Image
Description
Offset
Byte Destination
High Byte Low Byte
0 D1 D0 Analog output Channel 1
1 D3 D2 Analog output Channel 2
2 D5 D4 Analog output Channel 3
3 D7 D6 Analog output Channel 4
Tab. 4-17: Allocation of data for four-channel analog output modules