[Dsg-halld_plc] FCAL PLC remote IO system components

[Nicholas Sandoval]

Hi Tyler,

At one time there was a plan was to eventually add individual flow meters for the DIRC barboxes and optical boxes.  This is why they have separate names but are assigned to the same channel.  Please include the IO for at least 12 channels, and a spare IO module.  We can always add more IO to the remote chassis later if needed.

Thanks,
Nick
________________________________
From: Dsg-halld_plc <dsg-halld_plc-bounces at jlab.org> on behalf of Tyler Lemon <tlemon at jlab.org>
Sent: Monday, March 23, 2020 10:06 AM
To: dsg-halld_plc at jlab.org <dsg-halld_plc at jlab.org>
Subject: [Dsg-halld_plc] FCAL PLC remote IO system components

Hi Tim and Nick,

I've gathered a list of signals on the FCAL PLC that will need to be moved to the new Point IO system that DSG is developing.

Below is a table with the signals found. There are 12 PLC tags for the DIRC and ComCal. However, some of these tags are linked to the same input channel (like the bar box top and bottom differential pressures). These channels are highlighted in the table below.

Should the point IO system be configured in the same way? Or should we leave open channels for the potential addition of separate sensors for each tag?

PLC Tag Description     PLC Slot        PLC Channel
DIRC_BB_N_T_F   North bar box N2 flow top       5       3
DIRC_BB_S_B_F   South bar box N2 flow bottom    9       0
DIRC_BB_S_T_F   South bar box N2 flow top       9       1
DIRC_BB_N_B_F   North bar box N2 flow bottom    9       2
DIRC_BB_S_T_DP  South bar box differential pressure top 9       3
DIRC_BB_S_B_DP  South bar box differential pressure bottom
DIRC_BB_N_T_DP  North bar box differential pressure top 9       4
DIRC_BB_N_B_DP  North bar box differential pressure bottom
DIRC_BB_M_DP    Barbox N2 manifold pressure     9       5
ComCal_N2_Flow  ComCal N2 purge 9       6
DIRC_OB_N_F     North optical box purge flow    9       7
DIRC_OB_S_F     South optical box purge flow



I also received a quote on the modules needed from EECO.
The 1734-AENT Point IO Ethernet Adapter is $508.92.
The 1734-IE2V two-channel analog voltage input module is $289.88 per module.

I will put together a final cost estimate once the number of channels to be monitored are finalized.

Best regards,
Tyler
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