Writing Set Points; Manual Operation - Omron E5ZE-8 Communications Manual

Writing Set Points

3-4-2

Manual Operation

Starting Manual Operation
Stopping Manual Operation
3-5

Writing Set Points

Example
14
The time required for DeviceNet communications to be enabled will depend
on the order in which power is supplied, the number of Slaves connected to
the Master, the baud rate, and other variables.
When the E5ZE - 8@@@D1@B - V2 Multipoint Temperature Controller is being
operated manually, the following procedure is required depending on the rela-
tionship to the remote I/O Temperature Control Start/Stop Bit.
Refer to page 28 for details on the relationship between remote I/O and the
E5ZE operating status.
1,2,3... 1. Set the Temperature Control Start/Stop Bit to 1 for the control point to be
manually operated and temperature control will start for the control point.
2. Execute the Manual Operation Start command using DeviceNet explicit
message communications or through the RS - 232C auxiliary setting jack.
Manual operation will start.
3. Set the manual output using DeviceNet explicit message communications
or through the RS - 232C auxiliary setting jack.
Set the Temperature Control Start/Stop Bit to 0 for the control point being
manually operated and temperature control will stop for the specified control
point. Temperature control can then be restarted by setting the bit to 1 again.
The set point for each control point is written as 16 - bit signed binary data
(two ' s complement for negative values) in the corresponding word in the PC
to which the Master Unit is mounted. The value is automatically transmitted to
the E5ZE. The data will be written according to the setting unit that is set in
the E5ZE. The default value is 1 C/ F for thermocouples and 0.1 C/ F for plat-
inum resistance thermometers.
Leftmost bit
If the set point is to be set to -90.0 C, and the setting unit is 0.1 C, the value
set in the corresponding word will be as follows:
Set Point
-90.0 C
If the set point is to be set to 110.0 C, and the setting unit is 0.1 C, the value
set in the corresponding word will be as follows:
Set Point
110.0 C
If the set point is to be set to 110.0 C, and the setting unit is 1 C, the value set
in the corresponding word will be as follows:
Set Point
110.0 C
Refer to page 25 for details on the permissible setting ranges.
Rightmost bit
Decimal Hexadecimal
-900 FC7C
Decimal Hexadecimal
1100 044C
Decimal Hexadecimal
110 006E
Section 3-5
Binary
1111110001111100
Binary
0000010001001100
Binary
0000000001101110