menu

This article is about using analog/ digital inputs/outputs on DIN-rail ToolScopes rev1/rev2 which had those connections directly in the casing.

The electrical specification of the connectors of a rev2-ToolScope is described here.

"PCM3718" / "PCM3810" drivers integrate the analog and digital inputs and outputs of a top-hat rail ToolScope into the user interface. The PCM3718 driver must only be selected for top-hat rail modules delivered before the middle of 2011 (BRINKHAUS-internal: "rev 1").

The driver allows you to configure how many channels should actually be read out. The fewer channels are read, the more frequently the ToolScope can process data.

The driver also ensures that alarms are provided at the digital outputs in the event of an alarm. For each monitoring window, you can also configure whether these alarms should be issued on bits 1-4 or 5-8 in each case.

 

Function name

Description

Number of evaluated signals (analog inputs)

Number of analog inputs to be evaluated (0-16) (default: 8)

Number of evaluated signals (digital inputs)

Number of digital inputs to be evaluated (0-8) (default: 0)

Output alarm for window X to digital output 2 instead of digital output 1

Moves the error outputs to the last four digital outputs for the desired window. This means that the "Warn" bit (5) is no longer issued for any channels

Holding time for alarm bits [ms]

Determines how long the alarm bits should be held at the digital outputs (default: 1000)

Also trigger breakage bit in the event of alarms signaling missing tools

This option causes the digital outputs for breakage alarm to also be activated in the event of missing alarms

Signal name for acknowledging alarms [0/1]

Name of the signal on which the acknowledgment of alarms is received

 

Use of internal signals as digital output (only PCM3810)

It is possible to use the digital output pins as output for internal signals. In the default configuration the digital outputs are used for alarms. In the user interface you can configure for each output which internal signal is used.

PCM3810, configuration digital outputs

 

Function name

Description

Use pin [X|X] as alarm output

The output pin is used as alarm output

Use pin [X|X] as digital signal output

The output pin is switched on or off in dependence of the selected internal signal

Invert output

Inverses the output (NOT-connective)

Lower threshold

When the internal signal reaches this threshold the output is switched to 0 Volts (hysteresis)

Upper threshold

When the internal signal reaches this threshold the output is switched to 24 Volts (hysteresis)

 

Use of internal signals as analog output (only PCM3810)

It is possible to configure one (two in newer ToolScopes) analogue output. For this the ToolScope hardware needs some preparation, which is accomplished by KOMET®  BRINKHAUS before dispatching. Due to this special hardware configuration the output [63|64] becomes an analogue output (in newer ToolScopes output [61|62] can also be used). This output does not longer serve as digital output.

PCM3810, configuration of the analogue output [63|64]

 

Function name

Description

Use pin [63|64] as alarm output

This configuration is not possible, if the ToolScope hardware is prepared for an analogue output

Use pin [63|64] as analogue signal output

The output is set to a voltage between -10 Volts and +10 Volts in dependence of the selected internal signal

Amplification

This value is multiplied with the value of the selected internal signal

Offset correction

This value is added to the value of the selected internal signal