Mapping UserOutputs to Physical Outputs in the Sequencer

Introduction

When configuring UserOutputs in a Sequencer Set, the Sequencer does not provide direct control of the camera's physical output lines. Instead, Sequencer Sets can control only the UserOutput register through the parameters UserOutputValueAll and UserOutputValueAllMask. UserOutputs can subsequently be routed to physical output lines using the camera's LogicGate functionality.

Concept

The mask and value always work together.

• The UserOutputValueAllMask determines which UserOutputs may be updated.
• The UserOutputValueAll determines the state that will be written to those UserOutputs.

Understanding UserOutputValueAll

UserOutputValueAll defines the state of all UserOutputs using a single value. Each UserOutput and each combinations of UserOutputs corresponds to a specific value.

Our cameras provide four UserOutputs:

UserOutput	Integer Value	Hexidecimal Value
UserOutput0	1	0x1
UserOutput1	2	0x2
UserOutput2	4	0x4
UserOutput3	8	0x8

Multiple outputs can be activated simultaneously by adding their values together.

Determining the Required Value

To determine the required UserOutputValueAll value:

1. Identify the outputs that should be active.
2. Add the corresponding hexadecimal values.
3. Enter the resulting hexadecimal value in UserOutputValueAll.

The following table lists all possible combinations for four UserOutputs.

Output0	Output1	Output2	Output3	Integer Value	Hexidecimal Value
x	x	x	x	0	0x0
√	x	x	x	1	0x1
x	√	x	x	2	0x2
√	√	x	x	3	0x3
x	x	√	x	4	0x4
√	x	√	x	5	0x5
x	√	√	x	6	0x6
√	√	√	x	7	0x7
x	x	x	√	8	0x8
x	x	x	√	8	0x8
√	x	x	√	9	0x9
x	√	x	√	10	0x10
√	√	x	√	11	0x11
x	x	√	√	12	0x12
√	x	√	√	13	0x13
x	√	√	√	14	0x14
√	√	√	√	15	0x15

Understanding UserOutputValueAllMask

UserOutputValueAllMask controls which UserOutputs are affected by the value written to UserOutputValueAll.

Each UserOutput corresponds to a specific mask value:

UserOutput	Mask Value
UserOutput0	0x1
UserOutput1	0x2
UserOutput2	0x4
UserOutput3	0x8

To allow a UserOutput to be modified, its corresponding mask value must be included in UserOutputValueAllMask. To determine the required mask value, refer to the UserOutputValueAll Reference Table in the previous section and identify the outputs that should be writable. The same value calculation applies to UserOutputValueAllMask.

Example:

UserOutputValueAllMask = 0xF

allows all UserOutputs to be updated.

Understanding the Displayed Values

ImpactControlCenter displays register values in hexadecimal notation. Leading zeros are omitted automatically.

The following values are identical:

0x1
0x01
0x001

Example

In this example, exactly one UserOutput is active for each state, except State 3 in which all UserOutputs are active.

Configuration

UserOutputValueAllMask = 0xf

State Definitions

State	Output0	Output1	Output2	Output3	UserOutputValueAll
State 0	√	x	x	x	0x1
State 1	x	√	x	x	0x2
State 2	x	x	√	x	0x4
√	√	√	√	0xf

Using UserOutputs in the Sequencer to Control Physical Camera Outputs

To route a UserOutput to a physical output, the corresponding output line must first be configured appropriately. The following example shows how to connect UserOutput0 to a physical camera output.

Configuration Overview

"UserOutput0 → Logic Gate AND1 → Logic Gate OR1 → Physical Output Line"

The physical output line becomes active whenever the selected User Output is active.

Step 1: Configure the Physical Output Line

"Setting → Base → Camera → GenICam → Digital I/O Control → LineSelector"

1. Select the desired output line, for example Line0
2. Then set LineSource = mvLogicGateOR1Output

This configures the physical output line to use the output of LogicGateOR1 as its signal source.

Step 2: Configure the AND Gate

Navigate to:

"Setting → Base → Camera → GenICam → mvLogicGateControl"

Configure:

mvLogicGateANDSource1 = UserOutput0

The AND gate now receives the state of UserOutput0.

Step 3: Configure the OR Gate

Within the same class, configure:

mvLogicGateORSource1 = mvLogicGateAND1Output

The OR gate now forwards the output of AND1.

Using ExposureActive to Trigger a Light Source

When a camera output is used to trigger an external light source, the output is typically required to be active only during image exposure. This can be achieved by adding the ExposureActive signal to the AND gate.

Example Configuration

mvLogicGateANDSource1	UserOutput0
mvLogicGateANDSource2	ExposureActive
mvLogicGateORSource1	mvLogicGateAND1Output
LineSource	mvLogicGateOR1Output

Summary

• UserOutputValueAll defines the state of all UserOutputs in a single register.
• UserOutputValueAllMask defines which UserOutputs may be modified.
• For four User Outputs, a mask value of 0xf allows all outputs to be updated.
• ImpactControlCenter displays hexadecimal values and omits leading zeros:
  • 0x1 = 0x01
  • 0xF = 0x0F
• A physical camera output can be controlled by routing a UserOutput through a LogicGate and assigning its output to a LineSource.